I was trying to decide between these two games but then I heard that guitar hero wt instruments work with rock band 2 except for the extra pad on the guitar hero drums of course. This is all for wii. Is this true?
Yes, all guitar hero instruments work with rock band 2. BUT ROCK BAND 2 INSTRUMENTS DONT WORK FOR GUITAR HERO.
here is a chart that shows you which instruments work with what for all 3 next gen systems.
btw, the orange cymbal is taken as a blue cymbol if you're playing RB2 with GHWT drums.