Kuroshitsuji (though there are a lot of underlying hints in it *grins*)
Naruto (same as above - you can't honestly tell me that Naruto considers Sasuke just as his best friend -_-)
Shaman King
Black bird
Yu-Gi-Oh
Vampire Knight
Vampire Doll
Marmalade boy
Detective Conan
Liar game
Psyren
Doubt
Rurouni Kenshin
Inu Yasha
Death note
Monster
Nana
Bleach
Fruits Basket
Alice 19th
D N Angel
Hetalia
Bakuman
High school of the dead
Gals
I think that's it. I can't remember more of them, though there are a lot more on my wish list to read
Uhm, let me remember...
- INGENUO (It's really my most favorite manhwa in my life )
- Gokusen (Superb funny... XDD )
- Baby Love
- Yamato Nadeshiko Sichi Henge
- Uragiri wa Boku no Namae o Shitteiru
- MARS
- Throbbing Tonight
- Snow Princess
- Hanayomesama wa 16-sai
- Detective Conan
- Detective Kindaichi
- Dear Bancho
- Imadoki
- And much one shot manga which I can't remember all... XDDD
I've stopped reading non yaoi manga's for a year, but I really loved to read:
Air Gear
Kuroshitsuji
Vampire Knight
Pandora Hearts
07-Ghosts
D-Gray man
Fruits Basket
Zombie Loan.
BLAST Lucky Dog.