SP Top 5:

F-Zero (SNES)
Street Fighter 2 (SNES)
007 GoldenEye (N64)
SSX3 (XB)
Mass Effect 1 & 2 (PC, XB360)

MP Top 5:

Star Craft 1 (PC)
Battlefield 2 (PC)
Arma 2 (PC, DayZ ausgeschlossen - ich kenn das garnicht)
CS 1.6 (PC)
World of Warcraft (PC)