I have several that I really like, for different reasons:
Mondt GMC, a flat ground 2.5" blade in CPM-10V. It's my "cardboard knife", and holds an edge better than anything else I've ever used.
DDR CF ArcLite in D2M. ~3" shallow hollow grind, recurve, ceramic peen finish on the grinds, satin on the flats. My only necker. I always get rid of any others I may buy, cause I like it better. Very light, and thin. Disappears as a necker or a belt knife. Holds an edge, and cuts very well for a knife its size. It's real purty, too
THR Gambit, ~3.4" fully flat ground drop point blade in BG-42. Probably my best all around small fixed blade. I've used it for everything from cutting hose, plastic wrap and sheeting, and cardboard at work, to dicing up vegetables in the kitchen, and skinning a rattlesnake. Seems like no matter what I use it for, this knife was "made for it".
So the ArcLite's my favorite, the Gambit's the best all-around, and the GMC is the one that gets used the most. I love all three of 'em
The ArcLite is back home with its daddy getting a new sheath made, but here's a crappy pic(dang flash!) I just took of the other two: