Oh wow.  Didn't know kdramas were becoming popular.  Been watching them for almost 5 years now.

I've seen probably 40+ dramas and my personal favorites are:

-Kim Sam Soon
-Delightful Gir, Choon-yang
-My Girl
-Save the last dance for me
-Goong/Palace
-You're beautiful
-Coffee Prince
-Boys over Flowers
-Lovers in Paris
-Full House
-Heaven's Tree/Tree of heaven
-Fantasy Couple
-Wonderful Life
-I Really really Like You