Wish OS is best for gaming nowdays, XP,VISTA or WIN7. and should I go for 32 bit or 64 bit versions?
More aboutwish 64bit gaming
Despite rumor, XP still holds a slight lead .... but it's ancient and does not support DX11. At this point Win7-64 is the way to go.
I recently had a nightmare of a time getting Mass Effect 2 to work on Win7 64 bit. Finally they put out a patch for the game that fixed the problem but win7 is still new enough that games are going to have problems with it.