Brave Hector IVs

I just summoned a Brave Hector with good IVs (+atk -def). I already have one which is +res -def and I don’t know whick one should I use, and I would probably not merge him becuase I would like Bold Fighter fodder just in case.

Mines +atk,but if your not merging I’d go with +res.

My +1 B!Hector is +Res.
It’s a great boon for him. His Atk is already very high as is :hecmad: