If you've got the 360 version, your're better off with that one
The Wii version has only one good part about it, the hedgehog levels. Other than that the game is mediocre.
first thing that sucks is the werehog stages, they are so boring and there 25 of them and theres only 7 hedgehog levels which get you a bit wound up.
The map screens are bland and are very boring also.
So in my opinion, rent the wii version.
But what you do is entirely up to YOU.
But this is better than 06, shadow and heroes so at least thats something.
But even with this obvious advantage, the 2D and Adventure series are still the best games sonics ever been in.
But lets all pray that sonic and the black knight will be the game to bring sonic back fully and lets also pray that gamespot doesn't bash it. so respect my opinion and have fun!
Yours sincerely
Sonic Master EX