Batman: Ranking The Bat-Family Worst To Best
7. Helena Bertinelli
Having watched her entire family massacred in front of her, it's not hard to see why Helena Bertinelli might have a few screws loose.
Going full on vigilante initially saw her butt heads with the Caped Crusader, and even though he very rarely seems to accept her help in a non-begrudging manner, the fact he still allows her to operate in Gotham seems to suggest he sees her as an ally.