I consider knives tools for survival and every day use, as weapons they are a SHTF tool. As such when I go camp, I take a few with me, but I always use one that I have owned for nearly 15 years.
here is mine and what do you use when out camping etc.
http://i12.photobucket.com/albums/a2...LEMISTRESS.jpg
as for folding knives here are two I carry, not usually at the same time
http://i12.photobucket.com/albums/a2...t_/spyBoth.jpg