The thing that bothers me most about the game is getting ganged on, so I'm in favor of anything that makes you better vs gangs but not necessarily better in even up situations or when you're doing the ganging.

Maybe edges that give you extra attacks against people who are fighting you but you're not tanking. Things like free elbows, kicks, knees.

I also like how assassin throw edge gives you free throws when people miss bash on you. So maybe if someone you aren't tanking tries to bash you and misses, you get a free disarm on him or maybe something character specific like free jab if you're sword spec?

I don't know. I think anything that makes you look better vs gangs is good.