Guessing at who has the least loss yardage, I would go with Stephen Davis outta that list.
Tre rarely lost yards on a play. out of 39 carries, he had 1 (ONE) play that resulted in lost yardage. And that was always his motif. He just did not lose yards. i think the most yards he lost on a play was when Ricardo Louis tackled him in the backfield.
That is what puts Tre closer to the top for me.
Nobody will ever be better than Bo. When you stood beside Bo, you felt it. It wasn't just size or talent. You felt like he had been touched by the finger of God. The rest on the list have great football talent, but Bo was different. So he will always be the top.
After that, it is a good debate.
And i also thing we will have to wait several years to see how he does in the pros. As everyone else has had a chance to play at the next level, our opinions are skewed. If Tre is the next Shady McCoy, our opinions will change even more. Just human nature.