Interesting that the SAK is on top. But SAK is a whole range of knives with multiple tools included. If you put "multitool" on the list, it might come out on top, too!
I haven't owned a SAK in decades, other than a little baby with the small blade, nail file, and scissors. But I do have more than a few plier multitools.
I haven't owned a disposable razor knife in a long while, either. It's easier for me to just abuse and then fix a regular knife.
I have a Sod Buster, but I never took to carrying it. Two handed opening with no lock and no tip on the knife doesn't work for me. It's too specialized of a tool.
I have been carrying a poly-handled Peasant, lately. I often carry an Opi or a small locking knife. And my most used working knife is a small knife with a 2.5" fixed blade. It's a tough call, but I voted Peasant. It's super easy to sharpen, super easy to clean and maintain, super tough, super light weight, easy one-handed operation. And it's one of only a few knives on the list that lock. Well, that would be "lock" with air quotes.