and Vader has less power but he was a better villian then the Emperor so it doesn't mater what they are in control of. Or look at Ingorious Bastr.ds in that the main villian the Je Hunter is even more evil and more intimidating then the Emperor. Yet he doesn't even have 1 millionth the power that the Emperor has.
Creating a realisitc or good villian has absolutely nothing to do with how much that person controls or what magic they can do.
I suppose you're right, but I wouldn't call Lotso more intimidating than the Emperor. A good villain? Yes. They were both good villains. You like one more than the other, I like one more than the other.
For me, personally, I can't take the bear seriously.