The primary difference between the Rock Band and GH 1 and 2 games were they were mostly engineered by musicians. Guitar Hero 3 and up were engineered by programmers. This results in something of a higher difficulty curve and somewhat unintuitive rhythm game.
I dunno, I've played a few songs and I don't get the same buzz for nailing something as I do on Rock Band. Rock Band rewards you for felling the sound, while Guitar Hero seems to reward you for whacking the note.
Initial impression, I've still having fun with the game.
I've been taking comic pages to work, and just drawing there. I doubt I will do that today being I doubt I will have time to. I should pack them up anyway.