Most northerners say a good hatchet, small axe, or tomahawk are good. In the deep south, with all the muskidine vines, honeysuckle vines, kudzu and other bushes and vines, a good machette comes in handy. Hatchet or hawk are good for chopping firewood and such, or using as a hammer. I think you need more than one blade for ultimate woods survival. Large fixed blade hunting knife, small fixed or lock blade knife, a machette or hatchet. If in a group, carry weight can be shared. I have also come to the conclusion that the .223 AR-15 is the best survival long gun east of the Mississippi, and the .308 in either a L1A1 FAL, M1-A, or AR-10 is best west of the Mississippi and in Alaska.