I'm really on the fence right now about a ps3.  I'm pretty happy with the games I have for 360 right now though and am feeling more and more like I'm wanting to impluse buy the ps3 just to have one.  from what i can gather, Resistance is the only really show stopping game for the console right now.

I just don't see enough on the horizon to make me want to buy one just yet...but it's getting harder and harder.

SA hands down just based upon the massiveness of the game.