What series have good manga but anime so shit it isn't worth watching?

What series have good manga but anime so shit it isn't worth watching?

All of them.

GTO

Eyeshield 21

All the non-sol ones.

FP being right again.

The better question is what anime did improved the original manga.
Pic unrelated

Tsugumono

Umineko. Although the VN is better, obviously, the manga is a passable adaptation of the story.

Tsukihime.

Kingdom

Code geass only had knightmare frames in the anime.

The translation of this doujin was trapkino.

Tokyo Ghoul

Gantz

Tokyo Ghoul

I''S

Berserk

One Piece

This is the best answer.

See They are also bad but at least any screw up could count as new material.

Shit does not even begin to describe how bad the anime is.

Usagi Drop
Kare Kano

Yumekui Merry

Sayonara Zetsubou Sensei

Kimi no Iru Machi

why the anime is shit?

fpbp

Pretty much every comedy and sol including your image