Any Survivability builds for bonds of friendship?

I'm doing really and can get to Bahamut sometimes and heard Odin can be a nuisance. Instead of DPS, Maybe a build to Last Long is a great idea for me. I feel like I can beat it and it's way easier than ruler of Outer World's(Just can't customize Zack).

So it'll be greatly appreciated if anyone has these types of builds. And I heard to be a hero is much easier(I guess Sephiroth is Crazy Strong).