Well from what I can think of right now I would have to go with Garbodor.
Most of the human-shaped Pokémon: Jynx, Mr. Mime, Gothorita...I don't know, maybe too human-shaped Pokémon simply don't fit in well? For me, at least. I've yet to see a human-ish pokémon whose design I agree with.
Jynx, Mr. Mime and Conkeldurr and Meloetta are all pretty ugly to me. I'm not a big fan of humanoid Pokémon designs.
Magmortar and Rhyperior are also very ugly to me too. But Magmar and Rhydon are perfectly fine and really cool.