I just want to let you all know, Rock Band 2 > Guitar Hero: World Tour in terms of everything. And this is not opinion, this is fact.
For Christmas, instead of getting fancy pants games, I went retro. I got Zelda: Ocarina of Time for my N64 (a game which my cousin had, so I've borrowed it many times but never really owned it) and a copy of Pokemon Blue for my GBC (a game which I already owned, but lost somewhere... So I needed this to complete the "trilogy").
So pretty much all that is going through my video game radar these days are Zelda, Pokemon R/B/Y, and Rock Band 2.
People won't be people when they hear this sound.