The Anakin vs Obi Wan fight at the end of Revenge of the Sith is the best lightsaber duel we have ever got. Period.

The lightsaber battle between Anakin and Obi Wan is definition of how an amazing duel is supposed to be. Not the slow, sluggish movements from the original trilogy. The lightsaber is supposed to be an extension of your body. We haven’t got anything close to the level of that battle in any movies since then.