all depends on your criteria for ranking QB's.
If you're going strictly by W's and L's, then Morgan is probably at the top.
But, if you are ranking based on athletic ability, arm strength, ability to run, etc, then Morgan is going to wind up lower on the list.
I will admit that I wonder how a Weber or a Cupito would look if you could substitute them for Morgan. Foggie was more of a run-first QB. AAK was inconsistent but he could make plays.
found some stats-
Cupito had the lowest interception % of recent Gopher QB's (pre-Morgan)
AAK had the higher TD %. as in % of throws that resulted in TD's.
Weber had highest completion %.
Surprisingly, Foggie completed less than 50% of his pass attempts.