Well I could only narrow it down to three...
The szabo my fiance got me on our 10th anniversary with dates on blade for obviously sentimental reasons.
My loco, which is pretty new, but has kicked all my other favorite blades out of my pocket and I really feel is my final edc knife. It just fits my hand so perfectly and is so versatile in use and, and...
Finally, my dragonfly. I keep it on me even when have a larger blade and its just always there with me, and has been for years now. Love the zdp, and the nishijin scales are my favorite.