I RP to both fight and interact with other OCs. Lifestyle, sparring, that kind of stuff. Demonstrating your OCs fighting skills against a bunch of mindless NPCs can be okay, and shows how much thought you put into their strength and weaknesses, but as SAO taught me, it doesn't mean a ton if your character has zero personality.
TL;DR I care more about the interactions than the fighting
TL;DR I care more about the interactions than the fighting