Multiverse fight: Natasha Romanoff vs. Batman
Using the remote control device invented by Stewie Griffin that access the "infinite parallel universes" theory, we have two characters ready for an amalgamated multiverse fight.
Natasha, from Iron Man 2, has been bitten by the same genetically altered spider that gave Peter Parker his Spider-Man powers. She has her incredible fighting skills, super strength, spider sense, and webs. Now, she has the right to call herself "Black Widow".
Batman, Bale, has been born a half human/half vampire hybrid, like Blade. Batman has all the strengths of a vampire, Blade's vampire killer skills, and his Batman skills.
1) Hand to hand, to the death.
2) Batman has all of his Bat-weapons, and the uzi used by Blade. Black Widow has two Uzi's with ample ammunition, and throwing knives. Both characters have knowledge of each other. To the death.
The fight takes place in the rain soaked metropolis where the final fight of the Matrix 3 was. Both start out in the street exactly 100 yards away from each other.