This goes to Kyle. Why? How many people with lightsabers did Maul kill? Now, if you've played the games Katarn's in, then you'll know he kills thousands of them. I believe Kyle has a great advantage over Maul in lightsaber dueling just because he's has more time to ractice it in action then Maul.
Force powers. This is a hard one. I believe that Kyle has better control over the force, but in the words of Dooku: It is obvious that this contest cannot be decided by our knowledge of the Force... but by our skills with a lightsaber.
So it comes down to the lightsaber duel. And I believe Kyle is smart enough to use Maul's arrogance against him and win.