Gamasutra's Top 5 PC Games of 2010

The full article is here.

The (predictable) Winners:

5.  Stalker:  Call of Pripyat

4.  Amnesia:  The Dark Descent

3.  Mass Effect 2

2.  Civilization V

1.  StarCraft II

Honorable Mentions:

ArmA 2
Supreme Commander 2
Call of Duty: Black Ops
Fallout: New Vegas
RUSE
Super Meat Boy
Bejeweled 3
Battlefield:  Bad Company 2
DeathSpank