Originally Posted by MiqDoloran

I can think of a contrived situation where it would be useful to have AOE first. If your AOE girl and your single target girl can both take out a target, it's better to have your AOE go first so that your single target can hit another enemy. Otherwise, your single target hits the enemy which would have been eliminated by the AOE anyways.

That's true. I've pictured all enemies with around the same power. I didn't considered e.g. boss and adds scenario. But it doesn't mean aoe girls should be always first since it depends on situation squad'll be in.