I went back to see the duel between Vader and Obi-Wan and it looked like two punch drunk fighters going at it compared to Darth Maul duking it out with 2 Jedi. The charm about that first duel was it was slow enough so kids like me were able to reenact the whole thing with wiffle ball bats.
George Lucas had said that, in the prequels, he wanted to show what Jedi who were at the ‘top of their game’ looked like when fighting. If nothing else, he knocked it out of the park with that.