Smith in three seasons exceeds Rhett's output over four-plus if not for a knee injury in 1988 that kept him out of several games and limited his carries. As it were, he averaged 5.6 per carry to Rhett's 4.8.
Translated, if Smith carries the ball as many times, he ends his UF career with 4,897 yards -- 734 more than Rhett -- and in so doing Rhett takes only a few snaps in '90 while burning a year, which widens the margin even further.
You're whacked if you rate Errict Rhett above Emmitt Smith. The Bucs and Cowboys would probably concur.