Rounds 1 and 2:
1 RBY over 8 Earthbound
13 SSF4 over 12 Mother 3
11 FF4 over 14 SMK
15 MK64 over 7 SF64
1 MP over 8 KH2
5 MGS4 over 4 Goldeneye
3 FF6 over 11 SotN
2 MGS2 over 7 CC
8 Starcraft over 1 SM64
5 BioShock over 13 Persona 3
6 Diablo 2 over 3 HL2
2 SMW over 7 FE
1 SSBM over 9 WoW
12 Half-Life over 13 DKC2
6 LoZ:SS over 3 MGS
2 SMB3 over 7 KOTOR
1 Skyrim over 9 Oblivion
5 Perfect Dark over 4 SotC
3 Mass Effect 3 over 11 Sonic 2
7 Portal 2 over 2 KH
1 Chrono Trigger over 9 LoZ:WW
4 LoZ:TP over 5 ME2
14 Morrowind over 6 Portal
7 AA over 2 RE4
1 FFX over 8 GTA:SA
4 FF8 over 5 GSC
3 Super Metroid over 6 SMG
2 Fallout 3 over 7 LoZ original
1 LoZ:LttP over 8 CoD:MW2
5 Arkham City over 4 Halo 2
3 SSBB over 11 MGS2
2 LoZ:MM over 7 GTA3
Rounds 3 and 4:
1 RBY over 11 FF4
3 FF6 over 5 MGS4
2 SMW over 8 Starcraft
hell if I know (SSBM, HL, LoZ:SS, SMB3)
1 Skyrim over 7 Portal
1 CT over 7 Arkham Asylum
1 FFX over 2 Fallout 3
1 LoZ:LttP over 3 SSBB
Beyond:
RBY > FF6
hell if I know > SMW
CT > Skyrim
LttP > FFX
hell if I know > RBY
LttP > CT
LttP wins