I have to admit that I am nearly always frightened when some automated tool claims to be bringing the knowledge of the experts and help you make a difficult choice (despite half a century of computer activity, Artificial Intelligence is still not here). But I found this tool that claims to bring you “the expert’s recommendation” to choose your camera, and it is doing a decent job.
Criterias are too simple, I guess, but the advice is not too bad, understanding that it comes not really from the experts but from customer reviews which are naturally slanting toward “my camera is better than anything else” even if it’s only because “I can’t complain and look like a dick-head”. It tends to favour top sales from the top brands, but it’s not always as simple as that.
If you like it, I would recommend that you use it to reduce the choice to 2-3 cameras and, then, check the YLovePhoto database of SLR cameras.