Fat or not..Britney still the first female pop princess in industry, she outsold any other artist durin' 1999-2000 that was BOMT era, even those who "can sing", "can dance", and "do mature music", she is just in a higher level of those regional and unshiny stars who put all their sucess in a couple of awards
Let's just hope you don't break down the stats for "My Perogative" or "Do Something". The whole best pop artist in the history of the galaxyyyyyyyy thing doesn't sound great next to those. :-\