I'm a bit late to the party here but...
Number one game that I play (and have been playing since it was released) is Battlefield 3. Love it. After that there are a bunch of games that I play (when I have time which isn't very often). The Bioshock series is brilliant, Far Cry 3, Red Dead Redemption, Fallout 3, MLB 11 The Show, NHL 2010... I have a bunch of other games as well but I just don't have the time to play them... Heavy Rain was a brilliant game though. Only finished it to one ending though. Only 21 more to go!!