Originally Posted by Saertis

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.

Simply put, there are some situations where it's beneficial to put AOE girls first and there are situations where it doesn't matter either way. However, there are no situations where it's beneficial to put single target girls first. So effectively, you might as well put the AOE girls first anyway, since it never hurts to do so, but is occasionally beneficial.