Depending on how much difference there is on graphics for this game would sway my decision. If the PS3 was highly superior then i'd buy a PS3 for this game, but if the graphics on 360 were almost able to keep up (ie; xbox, gcn level differences) then i'd get it for the 360. This is one game you TRULY want to experience how it was meant. Kingdom Hearts so suits Nintendo's philosophy so I think it might go to Wii this time around.