I just LOVE colin and ryan, though, I fast forward through all of the songs.
The best line-up is Steven Frost, Colin Mochrie, Ryan Styles and Tony Slattery from the UK version.
The weakness of the US version is: the extremely loud and enthusiastic audience, really... wtf! :P and because it's a disney channel, it has to be censored, and that's DIFFICULT with an IMPROV show.
Though, the lame thing is, one time they can say ass, and the other time they can't, they can't say pussy (in cat form), but can say whore :/