Hey /vp/, I wanted to try out Starmie in Emerald to get some symbols with, only I've run into a snag while breeding. I've ended up with two good Staryu from breeding. One's overall IV is rated as Outstanding but has Illuminate, and the other's ability is Natural Cure but only rates as Impressive for total IVs.

Do I stick with the inferior Starmie with the better ability, or is Natural Cure not that important in the Battle Frontier?