Re: which system is better?
Wii has maybe the controls of next gen , but the technics from last gen.
PS3 has the classic controls , but the next gen technic (same as xbox).
A MMO is a Multi Mass Online Game, mostly Role Playing Games (MMORPG). Most famous is World of Warcraft.
Similar games might be released on the PS3 anytime soon, and if they do, u might have to pay monthly charges just for that game.