Edge didn't win the title before 2006 and most of his reigns is still acceptable for heel standard. I'll remember I want punch my tv screen when he cheated his way to win his second title at triple threat match.
At the very least, Edge in fact has a good creative mind for the business. He innovated the cashing in of the MITB contract on an incapacitated champion (every one whined and groaned against it except Vince who trusted Edge's judgement). This concept is being used to this day.
Charlotte has yet to contribute anything to the business the way that Edge has.
So I have to disagree with you OP.
If anything, Charlotte is like the female Triple HGH; plenty of title reigns with zero substance or drawing ability.
This is false, Edge might never have held the title over a long period of time, but he had plenty of entertaining feuds WHILE he was champion with John Cena, Undertaker, Batista, and Jeff Hardy. Charlotte sucks.