I can see ALI being splattered all over this thread, but, as clubber said Willie pep, sweet pee & I have to add Leonard.
Sugar Ray Leonard: wonderfully mixed offense and defense Julio Cesar Chavez: excellent at cutting off the ring. A great example of how footwork differs from foot speed. Most fighters with quicker feet and a faster set of legs don't have the footwork Chavez did, because it is MUCH more about foot placement than simply having fast feet.