Hyper Beam:
252+ SpA Choice Specs Aerilate Tornadus Hyper Beam vs. 4 HP / 252 SpD Blissey: 325-384 (49.8 - 58.8%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Still voting for maggy, as Nature Power is the only worthwhile move to abuse.
There is still return. It still has a good 115 base Atk to spam a BP 199.5 Return and 159.6 BP Natural Power. It also has good coverage with Superpower + Knock Off. But since I was the one who originally proposed it, I might as well vote something else.
Particularly don't see the point of Fairy/Psychic Cress, because its main problem about having bad recovery and vulnerability to status means it is still only gonna be a sponge and not a wall.
Malamar's problem is less of a lack of priority but more in regards to that it boosts too slowly to become a threat even with Sucker Punch.
On the other hand, Mismagius has an exceptionally fabulous typing that grants it 4 extremely common immunities (most so far), and being the fastest Fairy, and that makes it rather interesting, so voting for
Mismagius.