Chase, if I told you I wanted to compare two RBs' stats to see who was "statistically better" but I didn't tell you which particular RBs were involved -- would you use rushing yards instead of total yards?
Without any kind of agenda or desired result we are trying to get, it seems to me that total yards is the better measure, and that VBD points is probably the best overall measure, and that the last four years are more relevant than just the last 22 games (during which time one of the two guys was hurt).
All of the pro-Alexander arguments in this thread look, IMO, like special pleading -- using stats that nobody would use if they didn't already have a particular result in mind that they were trying to reach.