Xbox or PC?

So, I'm a rather experienced FPS player, with extensive experience in Halo 2-Reach (with tournament experience in Halo 3). A couple of my friends from college play BF3, but for both PC and 360. What are some pros/cons of both the PC and the 360 version? I'm pretty interested in the game, and almost 100% sure that I'm going to buy it, but I'm curious as to what the differences are.