The Leatherman Skeletool CX. Almost all Leatherman tools are a set of tools built around a pair of pliers. The Skeletool feels like a set of tools built around a knife...
It was a Delica or a mini griptilian for a year. My current favorite is the spyderco sage 1. Perfect size and my second favorite lock besides the compression on the pm2
I'm very fond of Benchmade axis-lock folders for EDC. I pocket a Benchmade 722 most of the time. Its a Mel Pardue design with tanto point and G10 scales - now unfortunately out of production. Its very well built and faster to deploy than the MicroTech UDT I carried before it. I bought a number of them when they were available, but only managed to keep two for myself.
I also have a 940 Osborne that is an excellent carry knife. Its a little more sleek and svelte than the 722, but it also seems a bit more delicate.
Although I don't carry them much these days, I have a couple of Livesay CKs (Company Knife) that I don't plan to part with. They are my first choice for a belt knife, and I usually have one close at hand.
Nothing exciting, a Benchmade 940. I like that it has a modified reverse tanto 3.4" S30V blade (the blade shape makes for a sturdier point), a steel liner inset into aluminum scales yet weighs less than 3 oz. It opens as fast as a switch blade and closes with one hand. One of the most convenient knives I've ever used.
It's light, very well built, fast and uses a high quality steel, what's not to love?
An Izula and trusty old BM 720. I'm new to the neck knife thing, but I have to admit it's a great way to go - much stronger (batonable), lighter, conceals better, and is NYC legal 😉.