@Nocturna
 I'm going to recommend  Scandal.. .   Looking at the other dramas that you have rated highly, I think you'll like this one. 
@Sterl-z
I'm recommending 1 Litre of tears, Koizora & Iljimae :)
The master's sun! :) :) :)
@Nightsnow
You have several good dramas on yout PTWL, if I hva to choose just one I'll say: The Princess' Man. But I also recomend The Moon that Embraces the Sun, Nodame Cantabile and Personal Taste. :)
You've got so many dramas on your PTW list - thanks for making my job easy ;)
Of the dramas on that list, I would highly recommend I Hear Your Voice, Empress Ki, It's Okay, That's Love, & Secret Garden.
LIAR GAME, Legal High, My Girlfriend is a Gumiho
You should check out Bad Guys or Dr. Frost for crime and no romance. Ex-Girlfriend Club or Fated to Love You are good for a romcom drama mood, though the former has more comedy and the latter more drama. Or you can take the challenge and watch Producers if you're up for a non-conventional often-called boring but interesting in my opinion drama. C;
Cheap Love
Cruel City
Good Life - Arigatou, Papa, Sayonara
Hanazawa Noaki
Lovers
Love Shuffle
@PrettyCarEye

A Man's Story - that's my favorite kdrama
Bad Guys - another great drama
City Hunter - i liked it
Liar Game - my favorite jdrama. and the korean version is great as well
The Man from Nowhere - even if Won Bin has few lines, you'll be blown by his acting
@prettytin

Faith (Lee Min Ho and Kim Hee Sun were fabulous. Despite the 11 year age difference I thought they had great chemistry)
Ho Goo's Love (just finished it. A fluffy, cute drama)
Hwayi: A Monster Boy (Yeo Jin Goo!!)
@somegingerchild

Healer – Perfect! 
Innocent Man – Seen this so many times, I could never stop rewatching this!
Kill Me Heal Me – Ji Sung's acting is too perfect, along with Jung-eum. 
Master's Sun – Still love. It gets better and better every time I rewatch it. 
City Hunter – I liked this drama with LMH. I still think it's pretty amazing. 
@Oppa-kiss-me

So many options! I think you would like these:
The Greatest Love
Bridal Mask 
Liar Game (Korean or Japanese)
Reply 1997
In Time With You
@Krispy

Kingyo Club
Dong Yi
Pinocchio! And Dear Friends was a really good movie, too.