Of the choices, I would say Buck 110. Bowie may have been a classic of the 19th century but now of interest mostly to collectors and/or those who appreciate its history, not so much by the general public worldwide. Another candidate; although the Ka-Bar is well known by most military knowledgeable folks, it is essentially an adapted hunting knife, not dissimilar from others of the type. OTOH, the Buck Folding Hunter is a unique design, probably it and its numerous knockoffs were once among the most popular EDC in the world. It is still in wide use and probably one of the most recognized knives anywhere. Large numbers of tradesmen and other workers carried them. If you wore pants, chances are a 110 was in pocket or on the belt. I have personally come across any number of people who had no interest in knives as such but had carried their 110s every working day or at least during hunting season. During the 70s you'd see more of them on US Army belts than Ka-Bars.
In the '80s, most all 110s were replaced by Leatherman or Gerber multitools, but that's another conversation.