Gaslight Batman is out to fight for justice and has excellent shooting capabilities. Nightmare Batman is like a dark monster and has his own unique skills. Which one do you like better out of the two?
I prefer Nightmare Batman, it throws a batarang that deals 50 Attack Damage to the first target it hits and slowing them by 20% for 1 second. Each additional target takes 25% less damage, down to a minimum of 25% damage.