I can only answer from my own experience and (too large)inventory. While on active duty in the 80s and 90s, I carried the standard Pilot's Survival Knife:
http://www.camillusknives.com/camillus/fixedblademil_5733.shtmlFrankly, its a piece of trash. Not once did I ever see an edge on one that could cut a piece of cheese. The edge chipped if you put it into the sheath too firmly. Used to carry a SAK to suppliment it.
As a civilian, I have put some independant thought into my equipment selection. As such, my choice for an AVIATION survivial knife (I carry a different, lighter, knife when backpacking)is the Chris Reeve Aviator:
http://chrisreeve.com/aviator.htmThe Aviator is sturdy, takes a scary-sharp edge, and is small enough to use without lopping off my own ear. I haven't really used the saw-edge, but I am sure it will work just fine. Also, I stuff a few of pieces of tinder and a cut-down spark-lite into the machined out hollow handle (and remember, this is one of the rare Equipped-to-Survive approved hollow handles). I only have two minor qualifications about the knife:
1. I've never really liked the leather sheath it comes with - jabs me in the kidneys. Instead, I sent the knife off to Bob Dozier (
http://www.dozierknives.com/) and he made me an extremely comfortable kydex sheath that holds the knife horizontally along my beltline.
2. The knife is not stainless. The knife is coated, but the edge is obviously exposed. I regularly treat it with Sentry Marine Tuf Cloth and no signs of corrosion so far. If I was flying in a salt-water environment or rain forest, I might choose a knife made of a modern stainless steel.
If I could travel back in time 20 years, I would definitely take this knife with me to carry in my survival vest instead of that glorified knife-shaped paperweight that I still use as -- you guessed it -- a paper weight.
By the way, the Aviator is not cheap. That's OK - neither am I...