The best part of the Kenobi/Maul duel on Tatooine is far more than lightsabers clashing. It begins far earlier, a duel of ideas and philosophies, and it illustrates Obi-Wan's growth, and how Maul has languished in his ability and become stuck.
It's a beautiful, well constructed duel, that is the height of swordsmanship, of tension, and character. Especially as Obi-Wan cradles Maul as he dies, the same way he holds Qui-Gon and Satine. The scene is layered perfectly well, and completely defies the rule of kewl so common in lightsaber duels.