Again, it depends on how much you want to spend and how much blade you want. There are a lot of great choices out there. If you're looking at spending under $40, you'd be hard pressed to do better than a Spyderco Tenacious or Persistence. In case you don't know, they're part of Spyderco's Value line. Decent 8Cr13MoV steel (close to AUS8), G-10 handles, full flat ground blade, overall a solid knife, though they're a bit heavy for their size. The Tenacious has a 3-3/8" blade, the Persistence a 2-3/4" blade, but are otherwise similar.
If you're looking to spend more, you could spring for a Spyderco Delica/Endura with better VG-10 (or ZDP-189) blade steel and your choice of FRN (plastic), G-10, or stainless handles, or the aforementioned Benchmade Mini-/Griptilian.