This is excellent. The lightsaber duel in the original film was not one of the strongest moments (the budget had a lot to do with it though).
In an actual sword battle, how much action (and gymnastic movement) is there?
I choose to see the duel as one between two aging Jedi past their prime. Kenobi admits he's getting to old for action, and his intent was never to win in any case, but cause a diversion.