1. The Long Halloween
The mystery is engaging from start to finish, as is Harvey Dent's fall. I particular enjoyed how this work managed to incorporate virtually every high-profile Batman villain. The art is amazing; I also liked how part of it was rendered in the winter. Essential reading for Batman fans and timeless.
2. Dark Victory
Another fantastic mystery from Loeb/Sale. I consider this a continuation of The Long Halloween -- it's just that good. As somebody who dislikes Robin, I thought Loeb handled him very, very well. He's pretty much the only reason Dark Victory is a notch below The Long Halloween. In the end though, they're both high quality pieces. Love it.
3. Haunted Knight
Big surprise. Yet another Loeb/Sale collaboration. Not on the same level as The Long Halloween or Dark Victory, but still a great read and pure eye-Candy. Sale has great artistic vision and Loeb is a true story teller. A great companion piece to The Long Halloween and Dark Victory.