Boba Fett vs Darth Vader
this already happened in a comic. fett seemed to be losing to vader until he threw the thing vader was trying to kill him for into a volcano and vader used the force to save it giving fett time to escape. fett had the opertunity to kill vader while he was saving what he wanted but didnt take it. if it was fett accepting a contract on vader and vader finding out about it and going down to face fett one on one who wins?