The worst anime?
Oh, i watched many. And i still regret it.
So, where should i start?
First of all: Naruto! To many filler, to boring characters and the philosophy of ninjas in this anime is completely misrepresented.
Then, as some user have said here, Grappler Baki. The first season was boring as fuck. From a martial arts anime, I expected exciting and brutal fights. But no, even the fights were not worth mentioning. The only reason, why i watched it, was cause of Yujiro Hanma, one of the best badasses in anime.
The second season was much worser. I still regret the watch. I don't even want to watch the new Baki-anime, just the animation-style and the character-design totally scares me off.
No, NEVER again.
Then Attack on Titan. This anime is imo completely overrated. And that's not even the problem. The problem are the fans. If you say "this anime sucks for this or that reason", you get instant shitstorm. I watched just a few episodes and that's it. By the time Eren became a Titan himself, it became ridiculous, which is why I broke off the anime. This was too stupid. And a little too violent, too.
But to be honest, i hate most of the Shounen-Anime. I also don't like Dragon Ball oder One Piece or even My Hero Academia. And there are still more animes, which i don't like.
But I still have an anime, which i really hate: Fullmetal Alchemist. This shit was also a horror, which is why I give the anime only a below-average rating. But it was not cause of the animation or the story or whatever. Do you know what really bothered me? The two main characters Ed & Al. The two brothers seem imo rather monotonous and rigid to me and never show anything.
As they are presented at the beginning of the series: whether their world view or their attitude to authority, they remain so to the end. Specially Ed was a thorn in my eye, cause he seems more like a rude villain who never let's himself be persuaded and doesn't want to change his mind.
With characters like Light Yagami (Death Note), Lelouch Lamperouge (Code Geass) or Spike Spiegel (Cowboy Bebop), i can understand the hype about them, but with Ed and Al it's still a mystery to me, what makes these two so unique.
FBI! OPEN UP!