I think the biggest thing that stands out about the attitude era was not just the edginess of the program, but even more-so the top to bottom depth of the roster. The main event scene was loaded. You had Austin, Rock, HHH, Undertaker, Kane, Big Show, Mankind, Vader (earlier half), Angle (later half). Upper mid-card you had Goldust, Godfather, Jericho, Beniot, Eddie, X-pac, Bossman. Lower mid-card had D-Lo, Mark Henry, Viscera, Test, Albert. The hardcore division was a whole world on its own too. There was Al Snow, Blackman, Mean Street Posse, Raven, definitely can't forget Crash "elroy" Holly. Same with the tag division. It was probably the most loaded division on the card. E&C, Hardys, Dudleys, Head Bangers, Kaientai, APA.
Taking a look at today's superstars, the entire current roster doesn't have as many stand out guys from to bottom as the AE had in a single division.