For me the answer has to be: A
UGA beats GT on a consistent basis (since I have been alive, GT is 11-29 in the series). I know that current students, alum and longtime GT fans hate to lose to them. As a UGA alum, but lifelong GT fan, I can't stand losing to the alma mater. For me, there is not a better feeling in sports than a GT victory over UGA in football.
Now I will say being at the Citrus Bowl Jan. 1st 1991 was an incredible feeling, bettered by the UPI poll coming out and proclaiming GT National Champions. This ranks as my most memorable sports moment (I actually have a list).
Final Four runs in 2004 and 1990, the ACC championship in 1985 are all pretty special as well, as were the Braves in 82, 91, 92 and 95 and Falcons in 80 and 98.
Still, 16-7, 35-18, 20-16, 33-22, 40-23, 21-19, 51-48 and 27-15 (I don't really remember '69-'70 & '74) can't be topped.
As for B, I have nothing against Mark Richt.
C, I just want GT to have a consistent winning football program. This would include a few more victories against the dawgs. I think respect would come by defeating them a little more consistently.