For what it's worth, I'm also really disapointed with Guitar Hero World Tour for Wii. Yes, they did implement a whole lot of features, and it's a great package on paper, but well, it's just not as much *fun* as Guitar Hero 3 or even Rock Band Wii (as gimped as it is).
The song selection is just okay, some great songs, quite a few not so great songs. :( I can't say anything about the drumming portion of the game, simply because they didn't make the game compatible with the Rock Band drums (unacceptable, considering that it works on the 360 and PS3). Singing is better in Rock Band. I also found the sound quality to be a bit lacking, it's much quieter than my other Wii games.
All in all, it's an okay game, but I'm happy that I only bought the game and not the bundle. Rock Band 2 is shaping up to be a better game on Wii, believe it or not...
