Why do you like RB better than GHIII?

[photorebel]

I have both, and the song selection on RB isn't that great to me. I like GHIII, but I get very frustated at times.
For example, I'll play a long song, not miss a note, and get near the end, hit the note (the note sounds, the screen lights...I know I hit it, and I'll still get that little buzz sound...like when I missed one).
THat is not to say I'm always perfect. I know when I miss notes, hit the wrong key..etc. It happens.
But when I KNOW I didn't hit the wrong key...oh, it pisses me off to no end.

That said, I didn't have that trouble on RB. So...is it the controller (wireless les paul) the software...what, on GHIII?

Is that why you guys prefer RB, or is it song selection...or what?