Can't say I'm with you, Junk.
Watts -- and Ringo, who's another argument entirely -- are essential parts of the sound of their bands. (Look at the continuing stream of lameass drummers who've played behind McCartney, who probably was better than all of them himself.) The Stones would not sound the same -- they would not BE the Stones -- without Charlie Watts. "Gimme Shelter" wouldn't have those great, down-cascading fills at the end of every line, and Tumbling Dice wouldn't have been half as raunchy.
I can't speak for Peart; not enough of a Rush fan, but enough people have told me how good he is, so I accept it. Charlie's pretty damn good, though.