Which pokemon annoys you most?

Zubat.
Nothing is more annoying than having to go through a cave where there are Zubats and you run out of repels.

Other than Zubat, I would have to say the roaming pokémon like the legendary bird trio.
Having to track down the roaming pokémon is so annoying. You can't even trap them with Mean Look since they'll always find a way to escape the battle.

As for the most annoying trainer pokémon, it's definitely Whitney's Miltank.

Pikachu and Meowth, especially Alolan Meowth.

I find annoying jigglypuff

Golbat. That Pokemon is such a cheater!

Scraggy really gets on my nerves... it looks like some weirdo walking around pulling up his pants. And that face also gives me the creeps...

Charizard

Togepi, duh....I don't even need to explain this useless pokemon

Ditto annoyed me the most.

i'd say psyduck. he waddles around with a big-a** headache, you can't do anything about it until it gets to the point where he uses a special move for no reason!

Pikapoo

Probopass. Mario has his own place, not in Pokemon.