Darth Vader vs Sauron.
Scenario 1: Vaders just cruising around in his TIE fighter being all pimp and shit when he senses an emanation in the Force. He checks it out and finds Sauron chillin' out post ass-raping the armies of middle earth like a badass mother****er.
They start just facing each other with standard equipment, no prep or knowledge of each other.
Scenario 2: Sauron gets 100 orcs at his disposal. They are all swordsman.
Scenario 3: Same as 2 only Sauron doesn't need the ring to survive.