Spyderco - Their knives are great, but their people are even greater. I know it's a business and they're in it for the money, but more than any company I've ever dealt with, Spyderco seems to care more about their customers and their customers' needs.
Buck - See above. When it comes to customer oriented knife companies, I don't think you can beat Buck or Spyderco.
Queen - I just got my first one a few weeks ago, and they come out of the box about as sharp as a bagel, but they're beautiful knives with top notch fit n' finish for a great price. Every knife on my "I have to have this" list right now is a Queen.