I gave up looking for the perfect knife for some time now.
I did went trough a few, from the cheap opinel to the praised spyderco military, and the beloved Buck 110, and i found what i kind of knew, that there are good knives for specific situations, but one to handle it all, ney.
You want strength, you loose slice, and the other way around, you want more tools, you loose ergonomics and blade size, you go fixed, the blade length drops compared to a folder that doesn't take as much space, and so on.
Currently i edc a case peanut, great little urban carry, complimented by some keychain/wallet tools, which are a selection from a sak classic, leatherman micra, brewzer, craftsman 4way and a P38 (both always in my wallet).
For more utility, i take a medium stockman sometimes.
For hikes and such i carry an Izula or Hest, or a Candiru if i want to go real light.
Of course, a vic farmer lives in my backpack, and i might add my leatherman rebar there just in case.
Some favorites of mine,
delica - IWB favorite, but it doesn't get carried much anymore.
vic alox soldier - great compact knife to handle quite a few jobs, rides great in a back pocket
opinel - unbeatable slicer for it's price, and the douk douk is there too, but not as comfortable to use, yet more comfortable to carry...
peanut - pocket carry, urban edc favorite
stockman pattern - hard to beat compact utility
I had a regular stretch too, but gave it away as it was too much blade for my edc, it was an outstanding slicer in the kitchen and around the house jobs.