I realize that other players on a team such as the Oline determines how a running back performs. What type RB do you prefer to watch? A strong bruising type with some speed like Earl Campbell? A gazelle like Gale Sayers? Or do you like a Jim Brown or Walter Payton? A back that can catch a pass can also be awesome to watch. Don't focus on what team he ran for but use a criteria that you want to keep him as long as possible and what will generate fan support. All backs past and present or college can be your pool to select from.