Black Widow gathers her ex-lovers together and tells them whoever wins will win her heart.
Round 1: Strictly hand-to-hand. Nobody can use weapons. Bucky has two normal arms.
Round 2: Free-for-all. Bucky has his mechanical arm, a combat knife, and a SIG Sauer P220 semi-auto pistol. Hawkeye has his bow and 10 arrows in a quiver. Daredevil has his billy club.
Combatants start 50 feet from each other in an empty penthouse apartment 50 stores up. Everyone is non-bloodlusted. Who wins?