We first met UGa in 1899. Played 45 times since then, with 24 of those in 1992 or after (SEC divided into divisions in '92). Means we played 21 times from 1899 to 1991 (a 93 year period), or once every 4.4 years.
That's very roughly equivalent to how frequently we play the six teams in the West not named Bama, these days. And it doesn't really feel like much of a rivalry any more with Auburn or Ole Miss or Miss State, playing them just once every six years.
So I agree, Georgia wasn't much of a rival prior to creation of SEC-E and SEC-W, if your definition of 'rival' includes a meeting frequency element.
p.s. Same for Florida (25 times over 75 years, from 1916 to 1991...about once every 3 years).
p.p.s. If frequency of play is your thing, or at least a big factor in defining "rival" for you, here's a useful list of Power 5 teams we've played the most, in descending order (cutoff at 30 meetings):
- Kentucky -- 111 times
- Vandy -- 110 times
- Bama -- 97 times
- Ole Miss -- 65 times
- Auburn -- 54 times
- Georgia -- 46 times
- Florida -- 46 times
- Ga Tech -- 46 times
- Miss State -- 45 times
- South Carolina -- 34 times
- LSU -- 32 times
- North Carolina -- 32 times
Given all this, here's how I'd break things out:
Historic (but not current) rivals: Auburn, Ole Miss, Miss State, Georgia Tech, LSU
Current (but not so much historic) rivals: Georgia, Florida, South Carolina, Mizzou.
Historic
and current rivals: Bama, Kentucky, Vandy.