What made him special was he had an extreme Jeckel and Hyde way he played the game.
Before the snap:
He was probably the best chess player at Lb, very cerebral, knew what you were going to do, before the snap of the ball ever happened.
After the snap:
He went from cerebral, to angry 500 pound beast, he had red in his eyes, he came full speed, hitting so hard, there are a list of players that could not get up, and when he got a hand on you, it was just best to go down, because very doubtful you were going anywhere.