When I state an opinion I present it as such, when I refer to history or facts, they are what they are. In this case you are struggling so hard with there is no correct answer and any opinion is bogus. Even Matts statements about highest grossing tours for two various years proves this as Alice is a bit of a shocker or at least not who would be the first to come to mind and the other year I forget but was a entirely different kind of music. Still then highest grossing tours means nothing other than to indicate who toured their ass off for that given year... the album might have been released the previous year... then there is still 9 other years in the decade. The 70's varied extremely from 71-79 and no boys... it werent all pretty... Muskrat Love... Tie a Yellow Ribbon... Night Fever... YMCA... PUNK... I wanna rock and roll all day and party everynight(just keep repeating for 3 minutes)... Cold as Ice... Put another Dime in the Jukebox baby... no not pretty at all.