Live action. The cartoons are so inacurate it's not that funny.
Both becuase, the cartoons have raw ass lightsaber battles, and the live-action one for the suspense and real life feelings the human feel.
So long as they don't show Obi throwing Star Destroyers around, I'm all for the cartoons. As long as they don't do what they did to the Force in Clone Wars, it should be cool. I would like to see them do what they did with Greivous fighting in Clone Wars, that was some awesome [Expletive Deleted].