My favorite folder is the Benchmade 585 mini Barrage. I carry the partially-serrated version, preferred for my use, but it also comes in plain-edge and either black or satin finish 154CM flat-ground blade. It has unnecessary but astounding Assisted-Opening, Axis-lock (safer than a liner-lock, solid, one-handed open/close, and makes the knife totally ambidextrous), and it has a safety switch that can be engaged to keep the knife locked open or locked closed.
The knife is ergonomic, very comfortable, nicely compact (though not slender), handles easily, has skeletonized liners for added strength - it's a solid little work-horse of a folder. Fit & finish is excellent, and it has BM's lifetime guarantee. It's new enough that a lot of brick&mortar stores still carry them (if they carry any Benchmade). If it fits your budget, I recommend it. The 585 feels like it was made specifically for my hands, but my hands are small - if you can handle it before purchase that's always better in case some other knife fits your hands better, but either way it's worthy of a look. That's my $0.02.