Although I also dislike cleaver style knives, I think aesthetics might actually be a real reason that people might enjoy them. Having a flat "nose" on the knife lends itself to a different visual appeal than many other knives.
Also there could be argued to be a small benefit in longevity. The straight edge acts like a wharncliffe but the height of the blade and the flat front means that over time, as the knife is sharpened, the length and shape of the blade will not change. This means that a cleaver style blade theoretically has a much longer lifespan that many other blade shapes without losing utility or becoming unsafe. So if a person only wanted ONE knife, and their needs could be met by a wharncliffe or sheepsfoot, they could choose a cleaver style instead and get a safer blade with many of the same benefits.