Sword boy: Bronn v Ser Vardis

An episode after Ned and Jaime had their short, sharp exchange, you get this full-on duel between Bronn and poor Ser Vardis in the Eyrie, with the sellsword proving that smarts beats high-handed confidence every time and rising above his station to become one of the best characters in the whole show. 

Bronn's tactics aren't even that smart - he just wears the other man down until he can get in the mortal blow. He keeps moving, and does whatever it takes to get the upper hand, and Ser Vardis never stands a chance.

It would be easy to assume that Bronn proves that armour is a waste of fucking time, but later in the season, the old bear Jorah Mormont shows how you can properly use armour to your advantage when he uses it to take down a Dothraki fighter, so the lesson from this one is to adapt to your situation, and just take down a lofty bastard when you can.