I'm a benchmade guy...have two that I really like.
My all time favorite knife is my kershaw leek though. It's cheap enough to use and abuse but feels like a knife that costs 2-3x more--and I love the shape of the blade. You can use the blunt end as a flat-head screwdriver, the tip is dagger point, and the blade can be leather stropped like a straight-edge.
It's just about the perfect EDC. I couldn't begin to guess how many packages or kid's birthday presents I opened with that...or how many electrical wires I stripped, loose strings I cut, etc.
I go through a "knife nut" phase every few years where I buy a few nice knives. Don't really even know why; cheaper than buying nice watches like Big Achoo I guess