If you could own only one game..

[endurance]

ok i will break it down in consoles
PS:THPS2
PS2:GTA:SA
GC:SSBM
XBOX:HALO2
PS3:MGS4
360:HALO3
WII:SSBB
i chose these because i think they give the best value,and awesome gameplay,but there not my favorite from each console,only the ones i would only have to last me alot