As stated already, neither choice is likely to be outstandingly useful to a backpacker, but they are what you're being offered, so they are what you must choose between.

If it were me, I'd go with the Ka-Bar, just because the alternative looks like such an oddity I can't imagine how I'd use it. At least the Ka-bar has a following among ex-military types, so it could conceivably find a happy home with someone else, even if you decide you can't love it yourself.