Who's your favorite fictional deity or demon?

Literature and films are full of fictional versions of gods, devils and demons. Whether people are meeting the Supreme Being or selling their souls to Satan, religious icons turn up a lot in fiction. But who's the greatest God or Devil (or angel or demon) in fiction?

Please include a picture or clip of your chosen God or Antichrist or whatnot. And throw in the title, plus why this particular version is worthy of praise and/or naked dancing. Thanks!

Top image: Peter Cook as Lucifer in Bedazzled. All hail!