I would choose a machete or parang. The reality for me is its going to be cold and wet so making a shelter and splitting wood are going to be the difference between being semi comfortable or freezing and possibly not making it. I can split wood to get to the dry centre, clean up the tiny branches off saplings to make shelter poles, gather a mass of undergrowth for insulation from the ground . Basically cut, slash, dig and pry. I think you need to go to a few third world places to actually see what a machete is capable of in the right hands, it will friggin blow your mind.