Grudge Match: Deadpool vs Batman

Okay, so this is a tough call. Who would win: Deadpool or Batman? My opinion? I think Batman would find a way to win. Deadpool is nuts and a skilled ninja, but Batman is a ninja and knows several martial arts. I think that Batman would not just fight him but find a way around Deadpool's healing factor by restraining Deadpool.  The thing is Deadpool does not mind killing people and Batman  does not kill. Batman would need to fight fast and put Deadpool down hard.