For me the knives would be a toss up. I really prefer the Buck sheath though. It rides higher on the belt, is sturdier and I don't like the look of the rivets on the K-bar.
Ka-bar makes a nice scaled down version of its famous combat knife that is a much handier size.
Better yet they make several variations of the USN MKI sheath knife that is a very nice handy knife.
The above are made in USA.