http://www.mensfitness.com/training/pro-tips/top-10-running-backs-of-all-time?page=3

Who is the best running back of all time? Well in my opinion to me it is none other than Walter Payton because he had a great personality and wasn't cocky, he was a hard player and worker, and that's why I respect him so much. Its not just because he played for my favorite team the Chicago Bears, its because he played hard, most times he played past the whistle. He had the quickness of lightning, and could make you miss with a blink of an eye. So its much short but when a debate gets started about who the greatest running back of all time is I automatically say Walter Payton and no one can change my mind,