fate/stay night the animated series >0< forever, even thought the anime is not even in the shadow of it's counter part, which is the best selling and also the best visual novel ever in japan fate/stay night the visual novel.

also Kekkaishi,Full Metal Alchemist,Dragon Ball,Yu Yu Hakusho,Detective Conan,Yu-Gi-Oh and Pokemon^^

detective conan all the way as i grew up watching that show. Plus conan is so adorable and i love rachel and serena lol. and jimmy kudo is pretty hot too and lol at richard moore.

Of those on the list that I watched, Fate/Stay Night wins by far.

wow so many good anime! i like code geass, fate/stay night, yugioh and yu yu hakusho the most

lol that's a lot of shows.
I like FMA and Detective Conan. I've also seen FB and OHSHC but can't say I like them too much.

I also love Fate/Stay Night,FMA,Yu Yu Hakuso,Host Club, Hayate no Gotoku ,...and many more from the pick but KHR is the best to me:x:x

and
Code Geass
One Piece
Fullmetal Alchemist
Fate/Stay Night
Dragonball
Hayate no Gotoku
Tsubasa Chronicles
Slam Dunk
Gakuen Alice
Bleach
Kimi ni Todoke
Special A
Yakitate! Japan
The Law of Ueki
Kaichou wa Maid-sama
Shonen Onmyouji

You sure have a list don't you 0__0

Also:
DC, Drangonball, Furuba,Ouran, yu gi oh, kyo kara maoh, kuroshitsuji, digimon

I can't really pick between Bleach and DBZ

Sooo many but I'm in love with this anime <3

& Kuroshitsuji, Kimi Ni Todoke. <3

I also like Kuroshitsuji.