To answer the question of the thread, it is safe to say that Dooku would have beaten Sids in lightsaber combat, but not in use of the Force. I don't think Dooku could even compete with the Emperor in a lightsaber duel. Palpatine is a level 9 and Dooku is a level 8, which means the Emperor is a much better swordsman. Gillard said that there's an enormous difference between levels 8 and 9. I don't think Dooku could beat Mace either, because Mace is a level 9 swordsman. Stories about Dooku beating Mace are only in the EU and would contradict what Lucas and Gillard say about both charcters' power levels, unless Dooku's victory occurred when Mace was very young and hadn't refined his skills yet.