Rock Band is better. It's not an opinion. The rectangle notes took a *little* while to get used to, but the gameplay is better, the note charts aren't just a bunch of h-o-p-o's put together, and the graphics are leaps and bounds better (not that it really matters). Also, Rock Band is made by the real Guitar Hero team, and Guitar Hero is made by THPS developers. I'll admit GH3 has a pretty killer track list, but, GH Metallica aside, everything else since then has sucked.