Hi GoldfishX,
Sorry, I meant to ask how players connect to RB. When I was looking at the multiplayer mode, it did not differentiate between local multiplayer and Xbox Live multiplayer.
It's good to know that vocalists are not popular. My wife can do that. :-)
I hate note charts that don't seem to follow the musical beats very well. I've seen people play GH3 on Expert, and some of the note charts do look artificial than natural when I listened to the music. So, even though RB has easier notes, I think it feels more natural. I think RB's guitar is a bit easier to allow the player to "air guitar." If the difficulty is too high, the player is too busy looking at the screen than rocking out.
I played the guitar solo tour on medium, and I do notice that on some songs, the Fender guitar strum has trouble hitting those long note streaks, even when I strum up and down. Thus, I totally agree with you that the RB guitar is not built well.
EDIT: Using xbox.com, I sent a friend request to you. See if you pick it up on your friends list. I have not subscribed to Xbox Live Gold yet, so I wonder if that might be why you can't see my request.