>>37487625Was going to say bug. Even the worst designed bugs the worst you can say is that they are a bit generic, like some of the early worms/butterflies.
Worst designed there's a few I could say. Fairy, it's pretty generic "pink blobs" except when it's not. It lacks identity and themes, they just slap the type on whatever.
Fighting type because I don't like humanoids.
Psychic type because there are also a lot of humanoids, and some really ugly looking things in there as well. It's hard for me to think of more than a few great psychic designs, and the one's I can come up with don't really seem like they have anything to do with being psychic, like starmie