I'm carrying a boker kalashnikov 74. Cheap and made well, it opens just as fast as most spring assisted. Brad hooked me up with it, at the Lafayette gun show a few months back. He also gave me a discount for wearin a ingo t shirt. It served me well today cutting the paper off the top of a candy cane full of hershy kisses.
I keep a Kabar in my truck. Theres some folder in there as well. Nothing too special. And I have a few different folders that I have on my person most days. M techs or S&Ws mostly.
I carry a basic Laguiole folder. They aren't the toughest knives, but you can shave with them out of the box and they hold their edge pretty well. I've yet to come across something it won't cut.
Spyderco Endura with wave feature. Good knife with good steel that will take a razor sharp edge very easily and the wave opener is the fastest thing around. Plus when I break or lose it (TSA took my first...) I'm not out a ton of dough.