Overrated: DOTS, Goblin, Fight My Way, Suspicious Partner
Underrated: Memory and Circle!!!!!!!!!!!!

Overrated: Goblin.

Underrated: Stranger.

Overrated:

Goblin

Boys Over Flowers

Heartstrings

My Secret Romance

City Hunter

Goong

Noble, My Love

Another Miss Oh

Heroine Disqualified- One of the worst movies I saw, yet it's still a very popular Japanese movie.

Underrated:

Moorim School - I wouldn't say it's amazing, but I really was surprised when I saw how low it was rated.

Devil Beside You

Behind Your Smile

Bring it On, Ghost

Blood

Shows I rated higher than MDL average. 

Ice Fantasy: Honestly this was the second Asian drama I ever watched, and the one that sent my down the c/kdrama rabbit hole. Had I watched it later in my drama 'career' it would probably not have rated so highly.  As my first love, I'm biased. (And the costumes! Omg!) 

The general and I: I am not someone who cries easily, this one had me balling. 

The show I rated much lower than MDL average.

My Amazing Boyfriend: Holy crap did the female lead annoy me. 

As for dramas from the second half of this year...

Overrated: While You Were Sleeping
Underrated: Girls' Generation 1979

Overrated

Descendants of the Sun

Goblin

Strong Woman Do Bong Soon

W

Boys over Flowers

The Heirs

Another Miss Oh

Secret Garden

Coffee Prince

Underrated

Battle of Changsha

Stranger

Dear My Friends

Underrated dramas

The package

A poem day

Miss Hammurabi

Money Flower

School 2013

30 but 17

Terius behind me 

Missing Noir M

Underrated is He is Psychometric, starring Jinyoung from Got7. He was such a great actor, I forgot he was a kpop star. I'm sometimes a "kdrama skipper" so I skip a lot when it gets boring. I did not skip a SECOND. It had the perfect mix of mystery, comedy, romance, and plot twists. PLS WATCH IT you won't regret it.