Terry Pratchett and Neil Gaiman
Terry Pratchett and Neil Gaiman, two contemporary satire writers, outdo themselves in their joint novel Good Omens. The novel, a tongue-in-cheek depiction of Armageddon, features an unusual pair: Crowley, a demon and representative of hell, and Aziraphale, an angel and representative of heaven. Both Crowley and Aziraphale live among men to do their masters' bidding -- and in the two thousand years of meantime, they have struck up a friendship -- and have a fondness for the humans among whom they have lived for two millennia.