Originally posted by Admiral Akbar
I dont think Sidious could take these two in a lightsaber fight. After all he lost to Luke in a saber duel and Mace is a much better saber duelist than DE luke. Dooku also possibly.
Also if Mace were a "much better saber duelist" than DE Luke (which I highly doubt), then Dooku would definately be as well. He and Mace are roughly on the same skill level.
Also - I'm inclined to think that Leia had something to do with their second lightsaber fight. Because the first one was only hours earlier, and Palpatine pwned Luke. Though this isn't concrete, I don't believe Luke increased in ability that much.