This one is inspired by the Jango Vs. Maul thread going on right now.
So, what do you think? Do you think Maul could beat Dooku? Or the other way around?
I would seriously have to go with Dooku winning this one. As I mentioned in the Jango Vs. Maul thread, Dooku was already strong as a Jedi and he became even more powerful when he fell to the Dark Side. We have no idea what Maul's past was like or how well his training went.
So, to reiterate, I'm going with Dooku.