RULES
1. We are only talking about the Live Action version of the characters.
2. Characters will act and fight only as they have been depicted in their most recent films/seasons and should be factored in when deciding who would win in a fight. I.E Black Widow kills all the time. The Arrow currently has a no killing rule
3. The characters will only carry weapons and armor into battle what they normally would. Suits like the Hulk buster and Bat armor are not normal and should not be be factored in to your decision.
4.The pictures posted for the battles will be the verison of that character fighting. For example if the posted picture is of the Christain Bale Batman that is the version of the character in the battle.
Senarios
Because one character would win in a shear feat of strength doesn't mean that they would be able to win in every single senario. Match up the characters to see who would win in these 5 senarios. A weaker character may be able to win given the right situation
1. Battle in a large populated city
2. Battle in a large barren wasteland with no cover
3. Battle in a cage match with no weapons or armor. Just bareknuckle brawling
4. Neither character has any knowledge of their oppenent
5. Both characters know everything there is to know about their opponent