With the current running backs included in the discussion, who is or will be the greatest running back ever? 

Jim Brown was the first, but then memories of him were wiped away by Walter Payton.  Even Payton was overshadowed by Emmitt Smith, Barry Sanders, and Thurman Thomas. 

Now it appears as though LaDanian Tomlinson is on track statistically, but if Adrian Peterson stays healthy, could it be him? 

You decide NFL fans, who is or will be the greatest?