Least Favorite Pokemon to Fight Against?

Barbaracle and Gastrodon, ALWAYS. If you dont have a grass type for Gastrodon you are SCREWED. And Barbaracle is tanky and hits hard. Like pls no

 

Wobbuffet hands down. Nuzlocke killer and in general annoying Pokémon to take down since you can't even swap out against it.

 

All of them
But honestly, I hate battling Forretress. Assuming it’s the stereotypical “spikes-stealth rock-toxic spikes-explosion” set, it’s really annoying to battle, especially without a fire type or a rapid spinner (neither of which I have often). It’s already very bulky and it has Sturdy as an ability. Fun.

 

Klefki for me. Its kit is too stacked.

 

Milotic with double team in gen 3. TOO MUCH EVASION!

 

I personally don't have a least favorite, so I will be answering on my sister's behalf.

Ludicolo. She seriously hates that thing with a passion. It's all because of Pokémon XD, where one trainer that you fight, like, dozens of times in the game has multiple Ludicolo. They're easy to beat if you have a flying, poison, or bug Pokémon, and she just didn't, so they were a little annoying to fight. But if you take something that's a little annoying and have to fight dozens of them in a game, they become the bane of your existence.

 

Wobbufett, just that thing has no chill at all

 

I hate the cave in XY because of that, the one before Shalour City

 

That said, I also hate fighting Grant’s Tyrunt. IT KILLS

 

Wobbuffet is the bane of Nuzlockes.

Competitive wise, if you use a Pokémon with Ally Switch, I hate you.

Also Oranguru.

 

Anything that abuses status moves...Confusion-inducing ones especially. Poison and Paralysis I can deal with, but hurting myself in confusion constantly irritates the hell out of me.

 

When I was Young, I didn't understand special and physical. It was really confusing for me that Rock Smash makes more damage on Chansey than a powerful Flamethrower.

When I Play competetive I hate pokes like Ferrothorn, Archeops (It is too fast and it makes too much Damage with acrobatics) and almost all Eeveelutions (Some are really bulky for some reasons)

 

Anything with Sturdy. There's nothing quite as awesome as my lv. 53 Samurott using Surf on a lv. 23 Roggenrola and it surviving because Sturdy ftw. /sw

 

Mine has been sableye since gen three. For the longest time it had no type weaknesses and it had at least two moves that were guaranteed to always hit for decent damage. back in the day these little buggers were a pain in my rear to fight and catch. Nowadays though I'm not sure if I have a least favorite.

 

A friend and I were fighting the Kalos Elite Four and Probopass nearly killed us all.
From now on I have a deep hatred of Probopass for reason that I have stated.

 

Big bulky Pokémon, often with Sturdy- such as Bastiodon, Gigalith, ect.