Good Omens - Neil Gaiman and Terry Pratchett
This book was quite funny. Let's see, the Antichrist is accidentally switched at birth and is raised without demonic influence. When the time comes for the Apocalypse it does not go anywhere near what was planned.
The characters were hilarious. Stuff like the four horsemen being bikers. The disappearance of the entire core of a nuclear power plant, yet the power production continues. Atlantis rises from the sea. The "prophesies" foretold by a witch in the 1600's keep coming true, but the predictions are difficult to understand until after the fact. An angel and a demon have spent 6000 years helping people and causing disruption and become pivotal to the whole end times scenario because they find they actually like people.
It is funny. It is unlike anything else I have read so far. I really enjoyed reading it and recommend it when you have a desire for something different and funny.