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I'm going to assume you have access to a hatchet or axe and thus don't need something that can chop.
For a long term survival situation you have to prioritize a steel being able to resist gross failure of any kind and being easy to sharpen with improvised sharpening tools.
An Ontario OKC bushcraft knife in 5160 fits the bill of having extreme toughness and sharpenability ,but without the absurd and often counterproductive blade thicknesses typically found in "survival" type knives.
If you need to chop, then just go to a bigger Ontario OKC in 5160.
Unfortunately, this sacrifices corrosion resistance, but we are still several years away from a nitrogen steel that can mimic 5160's properties while.being stainless.