I have the only folder I want: Sebenza.
It's not the prettiest and it wasn't a custom job, but it's the best user knife I've owned. I've had productions, customs, etc and none hold a candle to my Sebenza.
As for fixed blade knives, I like my little custom hunting knife I ordered a few years ago from K. Tomey. It's a tad small, but it's a good size for all around use at camp and while hunting. The spine is thick, but with the grind she used, it cuts like a thinner knife. It's between a hollow grind and flat grind.
Between those two knives, I've been out of the "knife" thing for a while.
Chris