Source: comicbookmovie.com

6. Surtur

(Thor, Marvel Comics)

Well, look who it is.

The terror of Muspelheim, the big fire demon, the wielder of the twilight sword, Surtur. Surtur was destined to bring about Ragnarök, and he tried numerous times. The best of which was his siege of Asgard during Walt Simonson's epic legendary run on the book (a run I am still reading, mind you).

I've never really been a Thor guy, and I’ve had difficulty getting into his stuff, but that arc sold me. The high drama, the epic showdown, those desperate third act moves that pulled the rug out from under the characters, all in service of the greater plot? All absolutely sublime. The dude also fought Ymir the Ice Giant to a standstill, which is pretty impressive. He has popped up here and there numerous times, but never as great as that Simonson story, aka my favorite Thor story of everything I've read.

But then, I love Surtur.