So, I have been thinking about this for a long time. Only one knife. Like everyone here, it is not an easy choice. Where I live, I cannot carry a fixed blade. So even with all its limitations, a folder is tempting. My Griptilian maybe? For what I would give up, it would mean I could legally have it on my person 24/7. I don’t own a lot of Scrap Yard knives (yet), but my YardKeeper would be a good choice once I get the sheath where I want it. Comfortable handle and versatile blade. I have a strong sense that the SS4 would be my choice if I owned one. [censored] aftermarket prices. As I don’t baton or skin large animals very often, a smaller blade would be perfect for every day use and handle most kitchen tasks.
But if I look at what I use the most frequently and would probably bother me the most to get rid of, it would be my Shun 8” chef’s knife…