The one on the left is currently the knife I take with me, if I know I am going to be relying on a knife for a long time.

It is a full tang 4 inch blade hunter I made years ago and at 3/16" thick the blade is almost indestructable. I am working on another, slightly classier knife which will be just as tough but with a grippier handle.

I always have my Gerber Multi Tool on me as well.

I normally use a Smiths three stone sharpening system with a bevel guide, to get the edge to a consistant shaving sharpness.