Your favorite online game(s) this gen?

[Jay520]

Here are my top ten:

1. Left 4 Dead 2
2. Gears of War 2
3. Battlefield: Bad Company 2
4. LittleBigPlanet 2
5. Halo Reach
6. Killzone 3
7. Dead Space 2
8. Warhawk
9. SOCOM Confrontation
10.  Uncharted 2: Among Theives