I dunno - Batman is pretty damn smart. He is the world's greatest detective, after all. And the Legion of Shadows was supposed to be the most elite ninjas in the world, and Bruce Wayne one of the most gifted ninjas.
But I can say that he is definitely NOT as funny as at least one ninja.
Definitely a ninja. Batman was trained by ninjas, but only in the fact that they were holding back to train him. If they went all out they would've killed him.
Dunno man, the Bat is like the darkness itself when he moves in on his target... they never see him until the last moment... Batman would either win or draw a one-on-one
Batman has cooler high tech weapons. Ninjas seriously would have to go kamikaze to beat him, but that would still be in Batman's favor. Batman is like a one man army. Somehow so is Robin. Ninja's have ninja stars, Batman has his Batterangs things. Ninjas have smoke bombs, Batman has mustard gas. Ninjas have ropes with hooks at the end to scale tall buildings, Batman has that cool thing he always pulls out of his back and shoots straight up into the air. Close call, but mustard gas beats smoke bomb.