Believe it or not, I want Breloom, and Durant. Not for any aesthetic or competitive reason, but because they - when combined with a Synchronize Gardevoir knowing Memento - make it possible to catch nearly any pokemon in any ball with ease. The only exceptions are those that require a little more finesse due to self-destructive moves. That sort of thing usually requires a Grumpig with Skill Swap for Thrash/Outrage/Petal Dance users, ghost-type for recoil damage users, or a Soundproof Mr. Mime for Perish Song users. If they take out ANY of these pokemon, I will be very irritated. In fact, right now I am in the process of using all of these to catch every breedable pokemon that can currently be caught in a Beast Ball in same Ball. I've been putting it off for a couple years, but I'm almost done. I already did all the hard ones, like Beldum. I will then proceed to breed a Beast Ball on to every Hidden Ability pokemon I can. Who doesn't want people to know that they can easily catch any Pokémon the hard way? That's why I use Premier Balls on Ultra Beasts.
In addition, I want Meltan and Melmetal, and not just in the Dex. I want an event that GIVES you a Meltan that you can evolve outside of Go. Some of us don't want to play on our smartphones for hours on end, or at all!