Riddick vs. Batman
Riddick has been fighting from monsters to mercenaries and now he's gonna face his toughest challenge, Batman (from TDK).
How does Batman meet this guy? Beyonder screws around that's how. Batman instantly appears inside Butcher Bay and confronts Riddick. Thinking this is some odd security guard, Riddick attacks.
Riddick has his blades and whatever guns he has in the movies. Batman has all the gear he has in TDK. Oh and also, the huge room they're in is dark so Riddick will see with ease and Bats will have to rely on his senses.
Who will win?