It's a questions that been around for as long as these characters have fought. Joker is the unstoppable force and Batman is the unmovable object, Joker won't stop killing and Batman refuses to kill. So should Batman kill the Joker in order to stop his killings. Do you think it's worth Batman compromising his morals in order to stop a monster. Should the unmovable object budge in order to stop the unstoppable force?
What do you think?