As a no nonsense field knife, the Becker BK-7 equals or outperforms the Ka-Bar in every catagoryincluding edge retention, chopping, stabbing/penetration, handle durability, slicing, prying strength, tang strength, balance, and in the long run, hammering. I cut, hacked, and chopped though a 5-6 inch thick tree branch with the BK-7 and it was still pretty sharp. If a Ka-Bar was put up to the task and could complete it it would very dull.
Because of the high saber grind on the BK-7, it cuts and slices MUCH better. But what really knocked my socks off is that it is much easier to sharpen when it finally does get dull. The Ka-Bar blade is thicker, gets dull faster, and is harder to sharpen and keep sharp.
The Bk-7 will also fare better as a fighter, in my opinion. The concave top sharpened portion of the Ka-bar will eventually get sharpened down to more of a hook, making deep penetration less efficient than the BK-7's spear point. However, you can sharpen the top portion of the BK-7 and not have to worry about it being ground down to a "hook" shape over time.
The Bk-7's tang is also much stronger. Using the Ka-Bar in extreme cold weather temperatures, i know that its tang bends rather easily from exposure to the cold.
Don't get me wrong, i love the Ka-Bar, it was my first fixed blade field knife, and the US Marines wouldn't love the knife and even go out of their way to use it instead of what they are issued(m-9 bayonets) if it wasn't a good knife. If i were stuck in a wilderness/work/tactical/survival enviroment, the Ka-Bar would meet my needs just fine for a knife. But in my opinion, the Becker BK-7 would meet them better. After all, it is a the finalized prodigy of the Ka-Bar, having over 10 years put into it's design and being based on adressing the shortcomings of the Ka-Bar and surpassing the Ka-Bar.