Kershaw Vapor
Surprisingly ergonomic, for me anyway. The blade holds a decent edge and is a breeze to sharpen. For a knife of low cost, I found mine to be, again surprisingly, tough. It has been carried in dockers and jeans everywhere and has not lost its shape or bent. After some use for about a month, there was a slight bit of horizontal blade play, easiy tightened up with a turn of the pivot screw. Lightweight and comfortable to carry, it makes for a decent sized edc for small jobs. Definitely not made for hard use, but I feel mine can take the pressure if need be. The only drawback I see is that the handles can be slippery when wet. The 'vapor holes' doe add a bit more 'grippiness.'
Benchmade Monochrome.
The same above, but in a smaller package (the Vapor I spoke of above was the Vaport II version). Very sturdy, lightweight with a blade steel that's easy to keep hair poppin' sharp. Despite the no frills appearance, it works as a gentleman's forlder for me and I've had no problems with use when I carried it. Again, the only drawback is the somwhat slippery handles.
Camillus EDC.
My favorite of the three mentioned. The blade seems just the right size for small tasks , cutting twine, opening packages, and 'big' enough for larger jobs; breaking down boxes, cutting that mega sub sandwich, cutting branches, even whittling. The blade opening is very smooth while the frame lock has yet to let me down or cause worry. The handles can be slippery in very wet conditions (what isn't?) but the holes and the knife's ergonomic size allow for a secure grip even when wet. The handles feel great despite its small size (I prefer beefy handled knives). As will all the rest, sharpening is easy. Shaving sharpness can be maintained on a Sharpmaker in a couple of strokes. The handle is designed well enough where I feel like I can stab into something with little to no worry of my hand sliding down the blade.
Sorry for the long winded response, but I hope this helps.