[Damian]

I've played all the GH's up to when I got RB earlier this year. I haven't touched Guitar Hero since. GHIII was the worse in the series in my opinion. It's significantly harder at the lower levels then the games Harmonix did and I found the boss challenges to be nothing more then a distraction. I doubt I'll ever buy another Guitar Hero title again simply because Rock Band is just so much more fun. This week is Aerosmith, we're getting GH: Metallica later on, rumor there is a GH:Van Halen in the works as well as GH:IV - World Tour which is their Rock and rip-off. It's obvious Activision is trying to flood the market with Guitar Hero sequel after sequel which in my opinion is going to do nothing but do more harm then good for the series.
I recently read all the songs you downloaded for GH:3 will NOT be compatible with GH:4. However, Harmonix just said all the DLC for Rock Band will be compatible with Rock Band 2, due out in a few months.