I love Villans, and Darth Sidious is the best villan in cinematic history, or fictional history for that matter.

He is pure evil genious. His web of lies, deception, and political engineering is the most ingenous scheme that I have ever seen.

I still to this day believe that even up to ROTJ, nobody knew that the Emporer was a Sith, save for a select few individuals. Tarkin even said "the jedi are extinct my friend, their fire has gone out of the universe, you are all that is left from their religion" (not an exact quote, but close enough). If Tarkin does not know, you can bet that it is not common knowledge.

Ian MacDermid is PHENOMINAL. He makes that character, and I have never seen an actor PLAY a better villan than Ian. I love how he laughs when he is fighting Yoda at the end. He is pure evil.

The Emporer is now my favorite Star Wars character of all time.