You miss the point though. The Buck 110 was the standard to which other knives were held. Affordable quality and reliability. It wasn't the first lockback, it wasn't the first folding hunter, but it was the one that brought such a knife into the mainstream. That changed when Sal Glesser started producing knives that could be opened easily with one hand, and put a pocket clip on them for easy carry. It wasn't the first knife to do either, but the early Spydercos were the first to make this mainstream. The Delica/Endura weren't even the first Spydercos (they're C10/C11), but they're without any doubt the most ubiquitous. Certainly they share a lineage with the Buck 110, but the 110 is no longer the standard to which other knives are held. IMO, that standard is now the Delica/Endura.
They're Game Changers. Like wheels on luggage. WTH did it take the human race so long to put wheels on our luggage? It's one of those "why didn't I think of that" things that should have been decades ago. Now everybody does it. And almost every modern knife maker these days takes Spyderco's lead and makes their folding knives easy to open one handed, and puts a pocket clip on it for easy carry.
I have no affinity or affection for the Buck 110, undoubtedly because I never had one. I've handled a few of course, and always ended up thinking "why the heck would I carry this instead of a much lighter knife that's easy to open and has a pocket clip?". I don't mean to denigrate the Buck 110, but IMO it's obsolete like a Model T Ford racing NASCAR. Of course there's great nostalgia in owning one and taking it around the block occasionally, but I wouldn't want to use it as my work vehicle every day. It might have been "good enough" for our fathers, but there's better out there today.
There may be "about 3 dozen or more good, legit answers", but I feel the Delica/Endura is the most appropriate. All modern folders owe their lineage to the early Spydercos, which were the next evolutionary step after the 110, and the C10/C11 are the most ubiquitous of those, and are still the most accepted standard to which other modern folding knives are compared to today.