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).
There is always a tradeoff between how much more do you want to carry and what do you think you might need.