Who had the highest work enthic? Michael Singletary, Ronnie Lott, or Reggie Bush?

When I first seen this question I said wait a minute, where did Reggie Bush come from? You cleared that up. I would have to say Mike Singletary. One of the great middle linebackers to play the game. Just look at what he has done to the 49ers. I always say guys who are winners and successful just have something that others don't. He is a winner and bringing that attitude to the 49ers. He brings something that alot of the bad football teams in the league need, discipine.