I would buy a 360 for Gears 2, but the 360 does have a very large selection of AAA games. So if for some reason you don't care for Gears there will be something out there for you. I personally am waiting for Left 4 Dead, that game is going to kick my butt. NXE is just around the corner so if you have a netflix account it will do nothing but give you options for movies and tv shows.
As for PS3 games I really liked LBP and god knows it needs some sales.
"If you've got them by the balls their hearts and minds will follow."
Quote by- The Imortal John Wayne, the original BADASS!