Surviving the Beta attack with an Enemy-Skill materia equipped is really the only reason to fight him at this point (the Beta skill is very strong, and if you get it at that point in the game, you'll be set for some time), considering how relatively little experience and AP you're rewarded with for defeating him.
If you just want to kill him, go in with your limit breaks fully charged and he won't be a problem. For reference, he has 4000 HP.