Disagree! The age difference was rare, but they liked me!

Jung Kyung Ho & Kim So Yeon from Falling for innocence
agree. I liked them together.
"Descendants of the Sun" I wish the best to Song Joong Ki /Song Hye Kyo but she looks like his older sister.
Zero romantic chemistry for me.
Disagree..they looked perfect together, plus they are getting married. Their chemistry is one the best I have seen.

Go Eun Byeol and Han Yi An (School 2015)
Agree! I preferred the other guy!!

Song Ji Hyo and Byun Yo Han from Ex-Girlfriend Club
Disagree..I thought they were pretty cute together!

Go Soo and Jin Se Yeon (Flower in Prison)

I haven't watched yet, but agree seeing some pics. They don't look too close like a couple should be.

Yoona & Jang Geun Suk (Love Rain)
Agree (or maybe not good enough)

Hwang Jung Eum and Park Seo Joon from She was pretty 
Edit: I haven't watched She was pretty yet
Lee Min Ho and Park Shin-hye (The Heirs) absolutely no chemistry and cringe worthy-.-

@DelenaFan you have to write if you agree or not with the previous couple 

(about The heirs) Absolutely agree!

Jun Ji Hyun and Lee Min Ho from The Legend of the blue sea (They really tried but something was missing :/ )
Agree! Neither cold nor hot!

Shin Se Kyung and Nam Joo Hyuk from The Bride of Habaek
Disagree - I think it's too early to tell

Seo In Guk and Lee Ha Na from High School King of Savvy
Agree 100%!

Park Ji Yeon & Kang Dong Ho (My Runway)