If I had to pick a mass produced knife I'd go with a Kabar bk15 or bk16

Here is my BK15

Here is my bk16


I mostly use green river blades that I have customized to my liking.

An old 1095 schrade sharpfinger is also a good one


I have a pretty good collection Photobucket is broken right now. I'll post some more pictures when it starts working again.