Faunus, GV doesn't understand, nor did he read the comics, which is why the Sidious fanboyism is coming into play. Wake up from your dream world Neo, DE Luke=/DN Luke. And there was no talk about potential anywhere, that's just some nonsense you and IKC made up because you didn't read the comics, and you dislike luke.
Except for the fact that you don't know how long it really takes Sidious to conjure up a force storm, except that they have to have a considerable distance between them, and you're forgetting the fact that Luke can chunk them into a black hole or the nearest star before Palpatine creates the force storm. Then again if it is saber combat, Luke ends it quickly.
I think Kyp could hold off Luke long enough for Sidious to get a good attack against Luke. I don't think Luke could hold off a force attack from Sidious and a lightsaber attack from Kyp. It would be a close fight, though, now that I think about it more. If Sidious could conjure up a force storm, then I don't see Luke winning, if he could eliminate either Sidious or Kyp early, though, Luke would win. Where is the fight?