What is the most disapointing anime/s you have seen so far?

[J44xm]

I can see no reason why it wouldn't count.
(Must be hard to catch 'em all when they keep adding to the mix.)

 

[Domon]

Don't know if this really counts but I recently watched the live action version of the anime Devilman. The acting is abysmal, the special effects are pretty pathetic and the lead character Akira, who is supposed to be one helluva tough mofo, runs like like Napoleon Dynamite

 

[Pingu4u2]

Fullmetal Alchemist. My God, that disappointed me so bad. I was a HUGE fan of the manga, way before the anime came out - so when I heard it was being adapted to an anime, I was sooo happy. I saw the anime screenshots, and was very pleased with the quality of the animation. Unfortunately, it totally let me down with how it butchered the original story and made Ed SO pathetic and emo. It didn't help that the opening music video sucked so bad, either -__-;.

Let's see, on a smaller scale, DNAngel was pretty disappointing, too XD. The animation wasn't nearly good enough, and it had less plot than the manga (I know, that's actually possible, believe it or not).

 

[mysticgenie]

Fate Stay Night....the ending was poor....Saber died in the end and thought everything was a dream....

 

[Haruspex]

Lets see.
Inuyasha, Dragonball, Bleach, Naruto, YuYu Hakusho, FMA, Death Note wait, shounen in general.
And this is only a demo of my list.

Anyhow, I personally don't find F/SN to be bad. I'd say, the ending was ok with a bit too much melodrama here and there. She remained where she belonged, thats all there is to it.
And umm, its not happy end and reunion for a change, I find that refreshing.