I think the link between beating Clemson and UGa is a coincidence. Besides, there have been years where we've beaten Clemson and lost to UGa (92 and 97 spring to mind).
The reason UGA is more important?:
1) State Rival - That makes them our biggest, most-hated rival, emotion, etc. Also, if we win the conference and lose to UGA, to me that really makes the conference championship feel so much more meaningless, in spite of the BCS ramifications.
2) Recruiting - if you can't beat your rival in-stae, your recruiting will suffer immensely and you can't replenish your talent
3) It's the last game (except for bowls) and you hate to lose your last game. It sends you into the off-season with a bad taste in your mouth.
So, IMO, not only is UGA our biggest rival, but also our most important game.
The reason UGA is more important?:
1) State Rival - That makes them our biggest, most-hated rival, emotion, etc. Also, if we win the conference and lose to UGA, to me that really makes the conference championship feel so much more meaningless, in spite of the BCS ramifications.
2) Recruiting - if you can't beat your rival in-stae, your recruiting will suffer immensely and you can't replenish your talent
3) It's the last game (except for bowls) and you hate to lose your last game. It sends you into the off-season with a bad taste in your mouth.
So, IMO, not only is UGA our biggest rival, but also our most important game.