West's Batman
Keaton's Batman
Kilmer's Batman
Clooney's Batman
Bale's Batman
Round 1: Arena is the entire Gotham City. Each Batman can use every arsenal/technology at his disposal to take out the other batmen. No sidekicks/assistants though. They know nothing about each other, other than the fact that there are 4 other guys in town who dress similarly and need to get taken out. Who wins?
Round 2: Same scenario as round 1 except this time they get intel on the other players and get 1 week of prep time.
Round 3: Hand to hand match in a gladiator arena. Who's the last man standing?