Here's the rules for this one: first, it can't be anything I was associated with, my hypocrisy has a few limits; second, nothing by Wizards of the Coast, because they get enough accolades.
This is for the little guys.
God bless them, every one.
Once again, in no particular order.
Gutsy, ballsy, brilliant. The single best idea anyone ever had for the OGL and the single greatest sign of why, the more "corporate" you are, the more the OGL scares/angers/worries the bejeezus out of you.
The surest sign that the inmates had taken over the asylum.
2. Year of the Zombie
As you all know, I am pro-apocalypse. However, I am anti-zombie. In my not-so-humble opinion 99.99% of everything involving zombies are just fucking dumb.
YOTZ (and they had me at hello with that acronym) captures the spirit of the one zombie movie I will watch repeatedly, the first Dawn of the Dead. It puts the survival in "survival horror" and casts the zombie apocalypse in stark, realistic military terms.
3. OGL Conan
Among the things I love, Conan is near the top. You can have your epic fantasy with your Legolas and your Strider, give me the moody, iron-thewed barbarian any day. This book comes the closest to capturing the magic of Howard's Hyboria better than any RPG ever, narrowly edging out GURPs Conan.
That's high praise in case you weren't aware.
4. GURPs Alpha Centauri
As much as I love CIV IV, my favorite Sid Meier game is Alpha Centauri. It's just an amazing setting and a game that oozes atmosphere, thanks to great voice acting and a great story. It's something a turn-based strategy game shouldn't even be ABLE to do, but it does, and brilliantly.
This book takes that great setting and turns it into a great RPG world.
This book probably has more to do with me becoming a writer than any other. As awesome as this gritty take on WWII supers is, and it's nothing short of amazing, the d20 conversion notes in the back, by Mike Mearls, did more to spur me to try my hand at writing a d20 supers game than anything else.