I would use a standard hilt with a dual phase setting and a purple crystal. I would probably use Djem So and Ataru for lightsaber forms. As for names, I would most likely not name mine.
Edit: I would probably also have a lightsaber pike with a purple crystal aswell.
I don't think it has been done before because dual wielding just takes away the ability to use power attacks. Djem So is best used with a single lightsaber.
I think beating the simulator makes him a good tactician either way. It may not be the real deal but it is close enough for him to be a good challenge imo.
I would say Caedus. Yoda does have speed and he is a smaller target, but he has less reach with a saber. I think that it would be a close fight though.
I would say that Tyber Zann would win. He seems to have superior soldiers, vehicles, and ships and more variety. I don't think that Black Sun's army is powerful enough to win against the Zann Consortium.