I don't have a 360 or a PC good enough to run Bioshock, but I did happen to watch a guy play for three hours today on a webcam. He, uh, bought the game at TRU when they accidentally were selling it yesterday, *cough**cough*.
I can honestly say that it looks incredible graphically, and the gameplay seems to hold up as well. Oh, and Big Daddy fights are even more intense than you think.
"Here's something unpleasant: all art comes from demons. Not real demons, in most cases, but demons of angst and horrible memories and sexual frustration." - David Wong