I vote for Go-Go Girls of the Apocalypse.
Quick synopsis of the reasons I've voted for GGGOTA so far (in no particular order).
1. Apocalypse. Go-Go Girls. Guns. Rotgut whiskey.
2. Catchy title. One of those you pull off the shelf to check out.
3. The book delivers on more levels than just being a fun testosterone fueled romp of a book. Satire. Social commentary. Quick paste job from a previous round (very minor spoiler):
Joey Armageddon's Sassy A Go-Go offers instant gratification (for a price). If I suddenly found myself in that world and saw the center of social commerce and economics was a strip club, I might not be that surprised. I also find it telling that the one edifice that had a large library and used the knowledge to better themselves had reverted to extreme isolationism and was led by a cross-dressing despot who engaged in genital self-mutilation.
4. Sure we're voting for books here but Victor Gischler deserves a vote as much as his book does. The man is just as witty and insightful in person. He even taught me to appreciate poetry.
5. Said it once but it bears repeating. Go-Go Girls = cool. Guns = cool. Go-Go Girls with guns = some otherworldly ubercool.
6. Need a new reason? I read the book and I liked it.

And really, isn't that the most base and best reason of all?