fuck I hate making top 10's. Here goes...of course I can only list games I've played so no bioshock, LBP, and some other in my list.
10. Fight Night Round 3
9. Grand Theft Auto 4
8. Ratchet and Clank Future: Tools of Destruction
7. Resistance 2
6. Killzone 2
5. Elder Scrolls 4: Oblivion
4. Fallout 3
3. Resistance: Fall of Man
2. Call of Duty 4: Modern Warfare
1. Uncharted
honorable mentions: Valkyrie Chronicles, UFC 2009 Undisputed, Rock Band, Madden 09