Come to think of it, why isn't Kane on this list? He hasn't been over enough to warrant his constant push since his return from SMW. He does the same three moves in every match and, other than that, basically just stalks his opponents around the ring now. Does anyone actually take him seriously anymore?
He's had about a million main event pushes (or one constant one, depending on how you view it) and has held the WWF title for 1 day.