I don't think so. GH:WT makes use of a new feature on the little solo board which the GH2 controller wont have. Although the GH2 controller worked on GH3, so does the GH3 controller work on GH:WT? I don't know. But i'm no expert so i'll await someone proving me wrong.
if you use previous guitar hero controllers, then you cant do online 2V2 or Band V Band.
I dont know why, i use the GHIII guitar, and it said my controller doesnt have this feature or something.
Well I mean I have GH3 for PC, I got the game and the guitar from Target for $50 for PC/Mac, and I had GH:Aerosmith but it sucked balls, so I threw it out...I just want WT because it has some neat songs. I can add them into my GH3 game but I don't want to do that atm . I already have 5 custom songs in there.