The Mora Robust
I use the Mora Robust because I do like a good carbon steel blade and a Scandinavian edge. This knife can be sharpened to a razor finish and has a 3/4 tang and an 1/8 inch thick back for batoning. Blade length is 4" making it legal to carry in most States.
The Chris Reeves Pacifica
The Pacifica is made in Idaho by Chris Reeves whose innovation and dedication to quality astound me. Every Green Baret receives one of his knives upon graduating. The Pacifica has a unique partial serrated edge and is full tang.
The OPinel No 8
There aren't many folding knives I can recommend that have a locking, carbon steel blade with a Swedish style edge, but the Carbone Opinel No 8 meets all of the criteria. It is also the very first "Survival" type knife I was exposed to.