No debate here. It is Alex Karras. Two time first team All-American, Outland Trophy, Many years All NFL.
In the George Plimpton book, "Paper Lion", he tells tales about Alex and the Detroit Lions. In a preseason game
the starting guard was out for the Green Bay Packers. A rookie started in his place and was asked after the game
what it was like playing against the great Alex Karras. The response was "He's got no moves and he is slow and weak."
Then during the regular season the two teams played again. The Green Bay guard was out so the rookie started in his place. When Green Bay had the ball the first play Karras knocked the guard on his rear, kicked him in the head and said "How'd you like those moves, Assface?"
After his career was over he was the color man on Monday night Football. One game that saw the home team get blown out produced many fans leaving the game early in the driving rain. The camera showed one poor soul up in the
bleachers all alone. The fan spotted the camera and flipped the bird. Karras immediately said, "There's one fan that
thinks they are still number one!"