In my limited experience I’ve used only one BU bench plane, a #5 Jack plane. I use it more than any other plane I own. I also own and use several BD planes. No strong preference, but the size and easy adjustments on the BU make it my most used.
I don’t think I’d want to own one style exclusively but it I really don’t think it’d be a big deal. They each work well if properly adjusted, sharp, and used appropriately. .