The fact that Sidious is Dooku's master has nothing to do with lightsaber skills (Anakin being superior to Obi-Wan for instance). I have no doubt that Sidious' force-powers and knowledge of the dark side is far superior to that of Dooku, but it's pretty obvious watching the way they fight in the movies that Dooku is a lot more skilled with a lightsaber. Obi-Wan was not an amateur in AOTC! Obi-Wan was a skilled Jedi who also killed Darth Maul as a padawan. Still Dooku played with him. Anakin was a padawan in AOTC, but I think most people would agree that he was exceptionally good with a lightsaber (probably better than most Jedi Masters). Yet Dooku beat him pretty easily. Dooku also handles both Anakin and Obi-Wan with ease in ROTS controlling them both with only a single-bladed lightsaber. Remember that it was never Dooku's intention to kill Anakin when they were 1 on 1. He made Anakin turn into his anger so that he could beat him, but if it had been Dooku's intention to kill Anakin he would have done more than just defend himself. If the fact that the Dooku fights look so more superior than the Mace fight only because of the stuntmen vs. lack of stuntmen then that is called bad moviemaking. When Dooku is portrayed as so superior to Sidious/Mace in the movies then that is the truth. If George Lucas intended otherwise, then he did a poor job. Dooku is the better swordsman, as is shown in the movies!