CVG reports that when asked if there would be any advantage to owning the PS3 version instead of the 360 one, Rockstar spokesperson Hosi Simon responded: “Not that I can think of.
"But I guess if you want the complete experience with the episodes, then yeah, you should buy the 360, I suppose.
“However, they're identical games. We're not hardware makers, and we're not like a pawn between these companies, we try not to be as much as we can. We make great games for people to enjoy on whichever system they want.”