I got stuck on the PS3 version, and it was markedly inferior. Lots of screen-tearing, particularly during cutscenes, a smushed draw distance and some rough, ugly texture compression. Granted, the game still played fine, and most console owners won't care, but the PS3's graphics weren't looking so hot. The Xbox 360 version, from what I saw, looked somewhat betterless tearing, and darker textures, though still nowhere near the quality of the PC version.
Well, this sucks. I was planning on getting it on the PS3 for the exclusive content, but now I may have to switch. Get your s**t together Ubisoft.