http://www.gamepro.com/microsoft/xbo...s/139669.shtml
I dont trust reviews at all, especially not from GamePro. I felt the need to post this here because it is complete bullshit. Possibly the worst, most biased review I've ever read.
To sum it up, Bioshock loses 4-5. They say Bioshock has better graphics, sound, and a better story. These are the three most important aspects of any game for most people. Halo 3 has better weapons and multiplayer (because bioshock is SP only). They also claim Halo 3 is more innovative. Having played both games, I can tell you Bioshock is 100% more innovative than Halo 3. Halo 3 is not very origional in any way IMO.
Halo has more fans than Bioshock, so of course its going to win this comparison. Bioshock lost four against five, but won on much more important factors than Halo 3.
In all honesty though I dont think either game should win game of the year. I wasn't too impressed with either of them, but I do feel Bioshock is a great deal more innovative and fun (single player wise at least).