I think the take away from this thread is that in real life (as opposed to Rambo movies) a folder is perfectly adequate. I have found that fire lighting equipment has been critical on several occasions, that there have been times (mostly in the past, pre-LED) when i wished I had a dependable light, but I can not recall ever muttering, "I wish I had a bigger, heavier, longer fixed blade knife." I do have some in my collection, but they are rarely carried. They do have their uses, but, let's face it, they are very specialized.

I have found a machete useful on trips to Mexico, but that actually was not in a true wilderness setting.