I wouldn't say that radiohead earlier stuff is better, i'd say ok computer, kid a and hail to the thief are by far their best albums. Muse are definitely influenced by radiohead although they only really sounded similar on showbiz, which is quite similar to the bends. I'd agree that jonny greenwood is a better guitarist than bellamy and i'd say that radioheads lyrics are much better, because some of muse's lyrics are pretty crap really.