Funny how Bruce Smith was constantly double teamed and triple teamed, the preeminent source of concern (and often trepidation) for the opposing QB and coordinator the whole game, played in 3/4, and somehow managed to put up mind boggling numbers in terms of sacks and tackles for nearly the entire first fifteen years of his career. There was a guest on NFL radio recently who runs an NFL statistics website who could not stop raving about how Bruce's cold hard statistics were off the charts in every category (e.g. 3X tackles/game than the average end. etc.) and that Bruce is the gold standard of defensive ends in terms of statistics standing alone without reference to "reputation" or "aura" (he went on to say that Bruce's stats blow away Reggie White's).
Not a knock on Mario Williams, clearly a pro bowl plus caliber player. Just saying Bruce was a once in a lifetime player. There is a difference. It will be very tough for Mario for a long time, since Buffalo fans will naturally be comparing him to an incomparable talent.