If you're maxed keep one thing noted
ATK / DEF / CNTRL style all give a seperate invisible boose to your stats.
If you're maxed, there is no point in using Strength on a whip because you can already hit the max hit.
It would just be in hopes of RNG switching up.
People alternate between DEF/ATK to try and use the invisible boosts as an aid.
Don't ever get in the habit of doubling up every round, lol.