Uhm...for me is - Hana Kimi - Hana Yori Dango - Rookies I know they're my favourite ever because whenever I search for a new drama I always end up wondering if it will be as good as them!
I can't believe no one has mentioned:

kimi wa petto

loved it.
1 Litre of Tears Hana Kimi Nobuta Wo Produce :)
Zettai Kareshi is my most favorite.. Ü
1 litre of tears.. Hana Yori Dango... Ryusei no Kizuna.. Mr.Brain... The Quiz Show 2.. So far...these are my fave jdramas ^^
Rich man poor woman code blue nobuta no produce hana yori dango these are my fav j-dramas so far
I absolutely adore Japanese dramas. All time favorite: 1 Liter of Tears Other favorites: Hana Yori Dango series, Liar Game series, Love Shuffle, Hana Kimi, Ryusei no Koruna. There are too many to choose.
Oooh nice thread! :D Hana Yori Dango Nobuta wo Produce Liar Game Buzzer Beat Love Shuffle Code Blue
Hana Kimi, Liar Game, Nobuta wo Produce and One Pound Gospel :)
TheTranquilKnight wrote: The Queen's Classroom
1 Litre of Tears
Liar Game
Legal High


Forgot to add Bloody Monday :)
Maou!

Nothing can top Maou for me. :P
MR. BRAIN (Kimura Takuya, Mizushima Hiro, Gackt, Kame, Sato Takeru) LIAR GAME (Matsuda Shota!!!) Switch Girl!! (Kiriyama Renn) *cough cough* But it's not like I only love these dramas 'cause of the eye candy (*´∀`*)
Jin 1 and 2 and Nankyoku Tairiku
Hana Yori Dango Hana Kimi 2007 Yokai Ningen Bem Yamato Nadeshiko Shichi Henge
Top3 Mother Queen's Classroom IceWorld