Jim Brown, Emmitt Smith and Barry Sanders all got together at a massive autograph signing event over the weekend -- and it begs the question, how do you rank these guys!?
All 3 have routinely been brought up in the age-old "Who's the greatest running back of all time?" debate. They're all in the Hall of Fame. They're all legends.
So, when they got together for a pic at the Chicago Sports Spectacular, it forced us to do some real debating in the office.
Barry Sanders .