The official top ten games of all time, according to GAMERANKINGS.COM (average review scores):
Title
Plat
Company
Reviews
Avg.
Vote
Avg
Score
1. The Legend of Zelda: Ocarina of Time N64
Nintendo 32 9.098.0%
2. Soul Calibur DC
Namco 30 8.996.4%
3. Metroid Prime GC
Nintendo 95 8.896.3%
4. GoldenEye 007 N64
Nintendo 22 9.296.1%
5. Super Mario 64 N64
Nintendo 21 9.295.9%
6. Resident Evil 4 GC
Capcom 108 9.295.9%
7. The Legend of Zelda: Twilight Princess WII
Nintendo 34 9.195.9%
8. Tekken 3 PS
Namco 23 8.195.8%
9. Halo: Combat Evolved XBOX
Microsoft Game Studios 93 8.895.7%
10. Half-Life 2 PC
VU Games 93 8.995.6%
Totals: 10 Titles551Reviews
Edit;
Sorry for the markup, it's a bit messed up. But you get the point I hope.