I think my Sog's and my Ka-bar are my favorite production knives. I'm also a fan of my handmade Kukri (with a 14" blade) and my handmade pattern-welded...Well the thing is like a wierd bastard love-child between a Filipino bolo and a Saxton seax. It has an "L" shaped handle with an 18" blade.
In looking at it as in the collectors point of view, I prefer the old knives from years ago, like Bob Loveless and Randall knives. The method that they used is superb to knives you see today. Looking back in one of my Blade Magazines I noticed one of Bob Loveless knives sold for $250.000 at one of the shows. When I started collecting knives I could not afford one of the knives made by these makers.
I would love to own a few of the Loveless knives. I really like the integral designs. However, they are just really expensive these days. I saw a huge subhilt fighter from loveless that was going for like 20,000! Most Bob Loveless knives, that I've seen, go for the 2000+ range, 1000 if I'm lucky. Maybe in the future I'll be able to own a couple of the classics for use and such.
Interesting fact, RWL-34 was a steel design for Loveless. RWL is his initials. Robert Waldorf (R.W.) Loveless.