Can I pick like 4 of them? Yeah? Ok cool.
Kershaw Skyline: My very first knife, still commonly carried by me even now, it can compete with any of my high end folders any day. The tip's whacked off and it's all sorts of scratched up, but it still slices better than almost anything else I have, save my new ZT 0770CF which seems to hold it's own pretty well against it. I plan on retiring this one soon once I can get my hands on the carbon fiber version.
Kershaw Thermite: Bought it when I was on my Hinderer kick, along with my 0560. It's a great speed-assist knife with a great blade shape and excellent ergonomics. That and it came out near my birthday, which makes it a little extra special.
Kershaw Leek: Noticing a trend, here? I just recently got the Leek with the D2/Sandvik composite blade, in blackwash, and this thing never leaves my pocket, even if it means I'm carrying three knives. It's comfortable to use, comfortable to carry, and it's needle-like tip is unlike anything else I own.
CRKT Ripple: Ah, a non-Kershaw. A small, fast mother of a flipper. The detent on mine is extremely powerful, and as such this little bugger flies out of it's handle readily. I polished the blade and the silver lines on the handle on mine, and it looks classy as hell. I typically carry this when I'm at meetings and need to look sharp.