What are your top 5 Korean Drama?

I'm looking for a korean drama to see, what would be your first choice
? You can take a look at my list to see my taste :) Please help me :D
And can you give me some overall plot, some personal idea, and some
actor/actress name stared it :) Oh, and if it funny or sad :D
Also, the drama that rank no.1 would be the one that you highly highly
highly recommend :D

Here is my list
5. Full house : funny drama
- Good cast : Rain, Hye Kyo
- About love

4. Dream High : Funny drama
- Refreshing drama, unique plot, musical film
- About student, friendship, teacher-student....hood,reaching dreams
:D LOVE
- GREAT cast : IU, Suzy ,Taecyeon

3. Sweet 18 : Funny drama
- Good cast : Lee DOng GUn. Han Ji hye
- About a 18 years old school girl forced to marry an 28 years old
guy. But luckily for her, he was who she "admired =>> I love this plot

2.Boys over flowers : Funny + sad drama
- Good cast : Lee Min Ho, Goo jun Hye, Kim Bum
- About love, friendship
- I like it, it was my first ever korean drama so...it got my hook :D

1.Autumn in my heart : SAD sad sad sad sad sad drama
- I teard up so bad :( such a great drama cause I cried without
feeling sad :)
- Best cast : Goo Hye Kyo...
- Bout motherhood, brother hood,friendship...
- They're bro and sis who than got separated because the girl isn't
his sister. Anyway later on they meet and .... from brotherhood to
love :P

If there is anymore drama about brother/sister love I'd be very happy

THANK YOU ALL