well, i gave up on hard when i got to that zz top bullshit...it's just one big fucking solo, and i can't bring myself to practice songs in rhythm games. normal seems stupidly easy, but maybe it'll pick up.
i really like gh3's music selection -- there's one sequence that's like paranoid, anarchy in the uk, kool thing, my name is jonas, and evenflow. which is better than anything gh1 managed. and actually its note patterns on hard have at moments given me the sensation of making chord shapes on an actual guitar...which i don't remember getting from gh1 either. i think harmonix did a better job of producing interesting, musical patterns on normal, however. and gh3 doesn't have harmonix's style -- the loading screen maxims are neither funny nor true, the characters and arenas look stupid, the female characters are all whored up. it's more tony hawk than rock and roll.