There are so many, but my favorite are.
-Naruto
-Bleach
-Ouran Host Club
-Loveless
-Samurai Champloo
-Shaman King
-DeathNote
-Girl Got Game <33
-Gravitation
-Cowboy Bebop
-Ranma 1/2
-Gatcha Gatcha
-Higurashi no Koro Ni
-ViewFinder <33