Windy City Gridiron is partial to John "Moon" Mullins' insight into Bears history, as the guy has been covering the team since the Ditka Era. Moon not only brings knowledge to the table, but has the ability to relate history to the present tense.
Recently, Moon compares all-time greats Gale Sayers and Walter Payton, and really makes us think about things in a different light. Based on Moon's perspective, as well as your own experience, how would you make the argument into the all-time greatest Bears RB?