The reviews have been disappointing. Now, it's not that I haven't bought bad games or games that got bad reviews, but I think I can wait this one out a little bit.
I was really looking forward to this game but after reading numerous reviews I don't think I want to spend $60 on a game with problems and only about 7-10 hours of game play. I'll wait for something better.
The length isn't what got to me. The quality of that 7-10 hours is what hurts. The Wii version has an added fighting mode but I'm not sure how the single-player is different from the PS3/360 versions.
GameSpot rated the X360 and PS3 versions 7.5 and the Wii version only 6.0, which is pretty unusual for them unless there are really significant differences between the versions. I didn't read their review of the Wii version though.