Part of the problem is that when someone asks about a good fighting knife, some people assume they want to duel with a knife. Which would just be stupid.
Not sure why anyone would automatically assume such a foolish thing, but lots of people still do, for reasons unknown. Do you think any GIs or Marines expected to duel with their Marine Combat Knives? No. They expected to creep close to enemy sentries, and cut their throats or stab them in the back. Where these then not "fighting knives"?
Of course, the place for a "fighting knife" is when you're forced into a deadly encounter at close range, and there is absolutely no reason to assume the deadly threat you're facing is a knife
So, I have to wonder why anyone assumes that cutting myself free from a choking attack, or slashing a hand holding a gun will result in me being cut? Because those are the types of "knife fights" I see as being remotely probable...unless, of course, I'm attacked with a knife. My plan then is to deliver force to my attacker from outside his range. Once again, I see no inherent reason to believe I'll be cut.
Can we put this idiotic knife dueling assumption in the ground now? Not sure why anyone ever assumes that's what anyone wants to do.
John