OHHH MAN ITS SO HARD TO CHOOSE JUST ONE ... But I Think if I HAD to Gun to my head or whatever It'd be the Mantis Shrimp!! But I also really really like Vampire Squids, Barreleyes, Anglerfish, Orcas, Spider Crabs, Eels (particularly electric / gulper / sniper ones), Viperfish, Isopods, Blobfish , Dragonfish , Seapigs ...... Basically anything that looks "Fucked Up And Evil" so to speak from the Deeper levels I always ❤️ some the mostest !!!