State yrs. ♡ It'll be useful for us! Start. What and *Why (optional)
I'll write some too. But alrdy forgot many tht I think best kdrama 2013/2014/2015 I've watch. Kekekeke okbye
- The Master's Sun 
- Healer 
- Kill Me Heal Me 
2013 - Nine, Secret and I Hear Your Voice
2014 - It's Okay, That's Love and God's Gift
2015 - Kill Me, Heal Me and Reply 1988
2013 Master's Sun
2014 It's Okay That's Love
2015 Oh My Venus
2013 - You Who Came from The Stars & Cruel City
2014 - It's Okay That's Love
2015 - Falling For Innocence & I Remember You

I haven't watched that many dramas in general though :/
2013: Cruel City and Nine
2014: Misaeng
2015: Splash Splash Love (yes this 2 episode drama was better than any full length drama I've seen all year. It was a weak drama year)
2013: The Masters Sun, I Hear Your Voice, You Who Came From the Stars, Secret.
2014: Birth of a Beauty, It's Okay Thats Love, Reply 1994, Bride of the Century.
2015: Oh My Ghost, Oh My Venus, She Was Pretty, Mask.
Keep in mind that I've only watched like 24 dramas so far......

2013: The Master's Sun; You Who Came From the Stars; I Hear Your Voice
2014: Healer
2015: Kill Me, Heal Me; Splash, Spash LOVE
2013: Master's Sun
2014: It's Okay That's Love
2015: Oh My Venus
2013: Cruel City; Gu Family Book; Queen Of Ambition; Secret; Reply 1994. 
2014: It's Okay, That's Love; God's Gift - 14 Days. 
2015: Mask; Angry Mom; Falling For Innocence. 
2013: You Who Came From The Stars, I Hear Your Voice
2014: Marriage Not Dating, Healer
2015: Kill Me Heal Me, I Remember You
2013: Secret
2014: It's Okay, That's Love. Boku No Ita Jikan
2015: Mask
2013: Cruel City
2014: Healer, Marriage Not Dating
2015: Oh my Venus 
2013: I Hear Your Voice
2014: It's Okay, That's Love
2015: I Remember You 
I still have a few dramas in my PTW list from 2014 and 2015 but here we go !

2013 : I Hear Your Voice (it was a very good year, I also hesitated with You Who Came From the Stars and Who Are You)
2014 : Pinocchio
2015 : Kill Me, Heal Me
2013: Golden Empire (I haven't watched many Kdramas from that year, though)
2014: Misaeng
2015: Six Flying Dragons (which is still airing, but I think counts for a 2015 drama)