No matter how many times I look at it, I find myself coming back to my Opinel #8. I mean, it's nothing more than some wood, a pivot pin, bolster, blade, and locking ring. Even without the locking ring, that's only four separate items combined. I'm just completely dumbfounded by how simple it is, yet at the same time, it's one of my favorites because it cuts so well. Not only that, but the wood handle can be whittled down and embellished however one wants.
It's a real no-frills knife.