Stiles is Death and Derek is War, but they're both still so human. Also, the apocalypse is happening. So there's that.

Raise Your Guns

Four Horsemen apocalypse fic. Awesome.

An awesome, awesome Good Omens/Supernatural crossover. And All the World's a Stage. It has footnotes!

And a really, really good explanation of how Crowley of Good Omens morphs into Crowley of Supernatural. Go read! And leave the author lots and lots of feedback!