Why does he have to be compared to any back? He's just Willis and hopefully he helps this team win a championship. To compare him to guys like Brown, Payton, Sayers, or even Emmit or Harris, well, you should get bitchslapped for being too giddy. Look, he's turning into a real good back, but let's save all the greastest running backs of all time comparisons for a few years down the road.