well my three favorite manga books are;
Love Hina- I like this manga book for so many reasons, the story is about a guy named Urashima Keitaro who's willing to get in Tokyo U because of a promise that he made when he was 5 years old.
FLCL- This was the first manga book that i read back in 2004, well this manga book is about a naota who lives in a town where anything crazy can happen to him.
Psychic Academy- This manga book is awesome, the chicks are well drawn and the story plot is kool. I started reading this manga book last month and i fell for it plus the manga books come with a poster with semi naked chicks that are hella hot.