Let me throw in a new one.
I think you should take a look at the Camillus Cuda Quik-Action. Although the model is discontinued, you can easily find one on E-bay. This is my EDC since January, and I'm pretty hard on knives. No bladeplay, no chips, no edgerolling, just a little blunting, which is easily servicable. And don't forget the gadget factor! The opening mechanism is a really unique one, and although the slide disc looks a little wimpy, but in reality, just keeps on going. The 3 inch blade is thicker than any other folder this size (except for the Buck Strider) and the steel is a well heat-treated 154CM. You just can't go wrong with it.