Honestly I love my dendrobium kingianum when it is out of bloom. It's one of the nicest looking plants that I have when it is out of bloom. The rest look weird.
My dendrobium antennatum has wonderful and thick succulent leaves that have nice shine and light color, and I love its foliage as well.
Then dendrobium cucumerinum has those funny little pickle leaves.
I love it! Though I don't have one yet.
Maybe they're not the "prettiest" by most people's standards, but I am proud to show off my dens in and out of bloom.