Fullmetal Alchemist
Absolutely the best!And as anime it is unbelievable!Both FMA and FMA Brotherhood went beyond my expectations!I believe that for concept,plot,art,characters and most importantly dialogues it gets 10 out of 10!Also i think it belongs to seinen genre because it needs more mature thinking to understand the sub context of the whole concept..Hiromu-sensei really thank you for this masterpiece!!
Bleach
If not the only one, then one of the really few manga with so many and so awesome leading characters!
Hunter X Hunter
Awesome characters!Absolutely want more!
Saru Lock
One of the most adorable pervy idiots ever!Love Saru!
Eyeshield 21
Love Hiruma MAX..Ya-Ha!
Boy Of The Female Wolf Manhwa