Hey,
Here is a matrix for all the instruments on all consoles for GHWT and Rock Band.
http://www.joystiq.com/Instrument-Compatibility-Matrix/
No only guitar hero world tour P.S. you can only play the drums on guitar hero world tour
You cannot use drums or sing on Guitar Hero 3. The drums work with Guitar Hero World Tour software only.
yes
Yes.
Your Guitar Hero World Tour Guitar will work with all Rock Band games but your drums will not work with any of the games because the Guitar Hero Drums have one more pad than the rock band drums
you can with mic and guitar, but not drums
No. But you can get just the guitar.
guitar, drums, bass and microphone
Yes, they can
No only from world tour and on
no
Yes the guitar controller for Rock Band will work on Guitar Hero World Tour. Rock Band drums and microphone also work on Guitar Hero World Tour.