The two jellyfish! Besides being jellyfish, they have some other notable similarities. They both have two-stage evolutionary chains, both can function as Special walls, and both have pretty unique typing.
Keep in mind that Jellicent has two forms, one for each gender.
Which one is cooler?
Which one is more useful?
Who would win in a fight?
My vote goes to Jellicent. He totally looks like the Pringles guy, lol. Using him in Black.
The female form is OK too.