What game would make you buy a ps3?

I am planning on getting a ps3 for christmas and as much as i am excited about what i will get to play this year, ratchet and clank, heavenly sword, uncharted, ins creed, haze, i cant help but be stoked for the games that has yet to release. My question is if you could choose any game that has yet to be released for the ps3 that would make you buy the system, what would it be? Mine would be kingdom hearts 3 because i am a megafan of that series and would kill for that in 08, although that is probably asking too much. please also explain why u would choose that game, now let the metal gear solid and final fantisy fans flood in with replies.