While I’m admittedly from the old Ron Hood School of big knives, if we’re talking a well-planned kit, I would likely go with a smaller knife only because they’re easier to carry on you all the time. My top two choices both reflect my mindset for survival…CHEAT!
Habilus Bush Tool with some sheath modifications and the addition of a small BRKT PSK knife:
Martin Knives Bushcraft-Tactical with a bird and trout blade.
Both have a sharpener and a firesteel (that also contains a little tinder). Unless you’re in colder climes or you’re practicing some serious primitive tasks for shelter, a larger chopper is over-rated and excess weight “if” your other gear is planned properly. While they’re less efficient, I can still build a shelter with a smaller belt knife and once a fire is going, I can burn through logs that simply burn to many calories to chop through. I do a lot of distance backpacking and I honestly pack too much steel…the smallest Mora #2/0, Spyderco Dragonfly, and a Leatherman PST mini multitool. There are two schools of thought…set up a base camp or travel from A to B. A smaller fixed blade gives you much better mobility options if you’re actually backpacking and not chopping wood in a base camp. So, as much as I love my large choppers, I need a fixed blade I can integrate into my pack suspension system for traveling, and it’s still able to remain on my body whether I ditch my pack or not. This is where your sheath system is as important as your blade.
Ideally, I would pair this with a Silky folding saw and of course a SAK/multitiool and pocket folder...
ROCK6