Dawg With Style, don't mean this to be upsetting to some, but I do have thoughts.
The caliber of competition that Gurley is facing in todays college game is of a much higher quality than Walker's days in college. Guess it is the old apples and oranges thingy. Yes, HW could play today, he was that talented.
In my mind Walker and Bo Jackson were the best ever, but Gurley is not through, and could end up being right there with the two mentioned. All three were/are "all that".