For no reason at all, I'm going to decide my Game of the Year for the last few years:

2007: Shin Megami Tensei: Persona 3 (PS2)
Runners up: Uncharted: Drakes Fortune (PS3), Rock Band (Xbox 360/PS3) God of War II (PS2)

2006: Gears of War (Xbox 360)
Runners up: Guitar Hero II (PS2), Metal Gear Solid 3: Subsistance (PS2)

2005: Dragon Quest VIII (PS2)
Runners up: Okami (PS2), God of War (PS2), Resident Evil 4 (GC/PS2)

2004: Grand Theft Auto: San Andreas (PS2)
Runners up: Tekken 5 (PS2), Katamari Damacy (PS2)

so there you go, thats basically all the best games I've played the last 4 years.