Yeah, I didn't include all my criteria, which includes being fairly balanced and having national significance in many cases, to be a MAJOR rivalry.
USCe-Clemson is a very heated rivalry, but it has rarely has any significance outside the state. UNC-Duke, the same. IMHO, Tennessee has ONE real major rivalry, I'd then include Florida in the next tier because it wasn't always of consequence with much history, same with UGA.
But lesser rivalries obviously are more common, Ole Miss- MSU for example, UGA-GaTech. The latter COULD be of consequence this season, for a change.