I'm taking NARUTO -ナルト- & NARUTO -ナルト- Shippuden a break (but i'll still watch it for a bit), which other アニメ should i watch?

Well here's some:
Higurashi no naku koro ni
Fullmetal alchemist
Shaman king
Vampire knight
ちび vampire
Ghost hunt
Elfen lied

What do あなた mean によって taking a break? You're not going to watch new episodes? または you're not caught up anyway and you're just going to stop for a while? I'm just curious.

Try Death Note and Kuroshitsuji. :3 They're very good!

Here are some of my favourites:
Bleach
Ao no Exorcist/Blue Exorcist
Durarara
Full Metal Alchemist
Ouran High School Host Club
Shugo Chara

Here's a few that I really like:
Fullmetal Alchemist: Brotherhood
Soul Eater
Vampire Knight
Hellsing