Woah, that is a lot of sharp things there. When I think camping I think tent and sleeping bag type of stuff, but then again I have never gone camping in a serious manner. In future, I plan to change it, so this list is very useful :)

I think, I would pick 2 and 3 as the first sharp thingies in my arsenal as they can cover most jobs of the other tools (probably not too great, but if there is nothing better on hand).