Canon EOS Digital Rebel XSi - I originally wrote: "Live View is limited, or you might even say crippled. You can't preview autofocus—I'm not even sure the autofocus works very well in this mode." When you activate Live View, you have to enter the custom settings and enable one of two kinds of autofocus, which you then manually trigger with the press of a button. The Live View isn't so much crippled as it is overly complicated, compared to the sexier iterations in the Sony and Olympus.

Sony Alpha a350 - I noted a sluggishness with photo reviewing: once you take a shot, there's an annoying pause. The question was raised whether or not this was due to Sony's D-Range Optimizer, which "delivers suitable tonality and exposures with rich shadow and highlight detail, even under high contrast situations." While the D-RO and D-RO+ modes can add even more time to the turnaround on the a350, taking pics without D-RO still means a turnaround time about twice as long as Canon's.

Nikon D60 - I complained about something I called the "auto-focus lamp" but which Nikon refers to as AF -assist. You can in fact turn it off, but it's not exactly easy. First, you have to go to the Setup menu to enable the "full" Custom Settings Menu, or the option doesn't appear. And then you have to go into the Custom Settings Menu, locate the AF-assist option and turn it off—provided you know that the bright annoying light is even called by that somewhat indirect name. My feeling is that this option should be off as a default, like on some competing DSLRs.

Olympus E-420 - I have said repeatedly that this camera has trouble with autofocus: when shooting with the kit lens, it resets almost every time you point it at an object, even if it's the same object you were focused on a second before. Olympus suggested I update the lens firmware to see if it improved anything. While there was a patch that I successfully installed, the lens' AF behavior is unchanged.

As you can see, when all new information is factored in, my initial ranking still stays the same. It seems you get what you pay for, though it bears repeating that the real dark horse is Sony's a300, a $700 (with lens) 10-megapixel version of the a350.

One final note: Whenever I bring up DSLRs, the debate about automatic shooting modes rages with some vehemence. I love the discussion, but I want to stress two things: Cameras intended for newbies need really good auto modes, and even the $900 kits I write about are targeted at the noob crowd. Don't believe me? Chuck Westfall, head of media and customer relations for Canon USA, told me this the other day: "The Rebel demographic is skewed towards beginners," adding, "We've found that any kind of automation we can give them is a good thing."

Thanks for the lively debate, and by all means keep it rockin'. As always, I am blown away by the depth of knowledge coming from Giz commenters on this popular but often confusing subject. [Entry-Level DSLR Battlemodo]

Digital Camera Info
Canon elected to include a SD/SDHC memory slot on the Digital Rebel XSi, in lieu of the traditional CF slot on SLRs... Canon updated the battery pack with a new LP-E5 lithium-ion battery, different from previous Rebels. Canon claims that the new battery will take 50 percent more shots per charge...users upgrading from the XTi to the XSi won't be able to keep using their old batteries.

DPReview
The viewfinder is now nearly as big as the one that graced Canon's 30D...Many of the remaining differences between this model and its predecessor are little detailed things that users have been asking for: ISO displayed in the viewfinder, spot metering, an ISO button you can reach with the camera to your eye.

Gizmodo
Live View is limited, or you might even say crippled. You can't preview autofocus—I'm not even sure the autofocus works very well in this mode. In the manual, Canon concedes that this is really for still life shooting and other limited applications...[still] It's an all around decent camera.

CNET
Regardless of the other entries in the XSi's pro and con columns, it delivers hands-down, best-in-class photo quality, surprising given the higher-resolution sensor... At 0.5 second in good conditions, the XSi's JPEG shooting lag is a bit longer than the rest; its 1.2-seconds duration in dim conditions, while not very zippy, is about average for its class... It's also the fastest burst shooter among entry-level DSLRs, snapping 3.4 frames per second, for more than 60 JPEGs in testing.

Camera Labs
If you want fuss-free Live View, quick AF and the closest thing to a point and shoot experience, then Sony's system is undoubtedly better. But if you use Live View for precision work like architectural, macro or astro-photography, then the technical benefits of Canon's system will be preferred.

- If you liked the XTi, then you'll like the XSi even more. It runs a retail of $800 (body only) or $900 (with lens). Just realize that if you're looking to upgrade from an old Rebel, you'll have to drop some extra cash on new flash memory and batteries.

The Weigh In As you can see, there's a wide range. I'm not saying weight is everything, but being the heaviest (by a lot) doesn't help the Sony.
On Paper Before we get into each camera's capabilities, have a look at their specs. Cameras are arranged in order of price, from cheap to pricey. You can see how it's easy to fall in love with the lower-priced models. But in action, you statt to realize why the pricing is so slanted.
1600 ISO and Auto White Balance In these shots, you can judge two things. First, some cameras have noisier high-ISO results than others (cough*Olympus*cough), and second, that auto white balance isn't the easiest thing to master. (I'm talking about you, Nikon.) Fortunately, two cameras do both reasonably well:
Action Shots in "P" Automatic Mode Some of you have beef with me complaining that some DSLRs have lousy automatic settings, but the truth is, great DSLRs do damn well on auto, so it's a way to separate the good from the bad. Here you can see from a quick session with all four cameras that getting a clean shot of a moving cat in low light isn't always possible:
Note the Nikon's shot: The cat is squinting because of the auto-focus lamp that goes on before the shot—generally annoying when trying to capture kids and pets in their natural states.

Full Manual ShootingHere's what happens when I try to take the same or similar shots with the different cameras, using more or less the same manual settings. (The above shot was from the Sony Alpha a350.)

Daffodils: Low f-stop, medium shutter speed, handheld Dawn: Medium f-stop, fast shutter speed, handheld Creek: High f-stop, slow shutter speed, tripod
THE END RESULTCanon EOS Digital Rebel XSi - First Place
What I Liked It's an all around decent camera, much lighter in weight than the Sony but with most of the same performance. The cheap starter lens, which you may scoff at, gives it an added weight bonus, making it lighter than all but the Olympus.
What I Didn't Like Live View is limited, or you might even say crippled. You can't preview autofocus—I'm not even sure the autofocus works very well in this mode. In the manual, Canon concedes that this is really for still life shooting and other limited applications. Also, for being $150 to $170 more than the Nikon, it's more or less the same class of camera, especially for manual shooting.

Sony Alpha a350 - Second Place
What I Liked All around intuitive camera with impressive automatic modes, a Live View that can demonstrate a lot, and solid control for people who know more. It's got the teaching ability of the Olympus with the picture reliability of the Canon. Although the a350 with 14-megapixel sensor is not as good a buy as the Canon at the same price, I think the nearly identical $700 a300 kit might be the best value of all right now.
What I Didn't Like The thing is giant, especially with the 16-80mm lens I tested. (The a300 is the same size and weight, by the way.) In Live View, I noticed from time to time that white balance on preview was different than what came out in the shot, which was annoying. The worst attribute, though, is the exceptional processing delay after you take each shot.

Nikon D60 - Third Place
What I Liked There's a keep-it-simple design here that works: not many hidden frills, but many nice clear options. I think for the money, this is the best idea for knowledgable, confident shooters, though it's not the best bet for beginners. I like one rare random perk in particular, the stop-motion video maker.
What I Didn't Like Simple means no frills like Live View previewing that the other models have. Though it's very handy when done right, like on the Olympus, it can also be done badly. Judging from Canon's execution, I can see why Nikon didn't bother. I have two particular pet peeves with the Nikon: Low-light autofocus triggers a very bright AF lamp, which makes pets and children go all squinty, and the auto white balance makes things too yellow indoors, and can't be overridden when in automatic modes.

Olympus E-420 - Fourth Place
What I Liked Besides the remarkably low price, I think this camera has the capacity to teach you a lot about manual settings because of the Live View. Like the Sony, this shows you the effects of your WB, exposure, f-stop and shutter settings in a live preview as you make them. Oly has this down, and was the one that started it all.
What I Didn't Like The lightweight camera is missing a lot of strong tech: the ISO 1600 is noisy, autofocus doesn't respond nearly quick enough, and shooting in automatic modes turns up blurry and unfortunate shots.

There you have it, folks. I've tried to include enough of my methodology to let you judge this stuff for yourselves. Surely there's a lot to talk about, including the obligatory "body vs. glass" debate. I agree that lenses make a difference, but with new DSLR advancements, the bodies are starting to have a greater impact on how well people take pictures. You may know it all, but any one of these cameras can help the ignorant noob more than anything that came before. OK, that's my take... you have the floor.

Update: Check out our DSLR Battlemodo follow-up, which answers some of the questions raised in the comments below.

[DPReview]

Its interface is sexier, with subtle shading and color options, which look even better thanks to the great LCD screen (a necessity with live view, which well, worked). Shooting produced a more satisfying click than than the XTi as well and the autofocus was definitely snappy. We obviously couldn't subject it to lotsa photo tests right here, but if the specs and our bit of time add up correctly, this is the new entry-level DSLR king. [Giz @ PMA]