GH1 = Kinda lame. No master tracks, hammer-ons and pull-offs didnt work.
GH2 = Barely any master recordings, but almost every song was a great song and very fun to play. Best of the GH games.
GH3 = Very lame. Most of the songs suck.
GH:A = Stupid idea.
Rock Band = King. GH2 follows very closely behind.
GONNA SMASH YOUR BALLS IN A VICE!