As an every day carry, I always seem to come back to the Spyderco Delica.
Delica
I also like the new Spyderco Tenacious - which is IMO one of the best deals around. Tenacious
I also like the Native, but find it slightly hard to open than the Delica and Tenacious.
I also like the BM Griptilian, but find it slightly too thick in the pocket. The Mini-grip is nice too, but doesn't alow a full have grip for me. I modified the handle and it now works for me.