Anglekos
The devil in your bed, the angel in your head.
Kuja for one. I absolutely despise him; he annoyed me all through FFIX, and the chance to kick the crap out of him in Dissidia is just too good to pass up. Garland looks interesting to fight; Do a good ol' scrapper with him using WoL.
But I agree, Ultimecia blows. Then again, I wasn't much of a FFVIII fan.