Well I just typed a load of stuff and then I accidently clicked back so it all got erased, so I'm just going to do a quick top 10 until I feel like re-typing it.

10. Battlefield: Bad Company

9. Medal of Honor: Airborne

8. Super Smash Bros. Brawl

7. Army of Two

6. Lost Planet: Extreme Condition

5. Assassin's Creed

4. Halo 3

3. Bioshock 

2. Mass Effect

1. Mercenaries 2: World in Flames

Yup, so there's my quick list. I'll re-type it when I'm in a better mood to make it look nicer.