I'll be interested to hear what those with both bodies think. My quick take is that you are talking about two great camera bodies. The 5DII is probably a little better for everything you just mentioned (including high ISO performance--I believe the 5DII is about a stop better than the 7D), with the possible exception of candids (AF and FPS of the 7D may help you out there). But, to get that slight improvement, it will cost you a fair amount, and as Sean just noted, not just in the camera body, but also for the lenses that are equivalent to the EFS lineup.


I have the 7D and am very happy with it. But if I was a low light landscape, portrait first type of shooter with sufficient money, I would probably get the 5DII (or, with enough money, the 1Ds ).