Hi =)
I haven't seen all of them, but I'll try ^^ (my judgement is kinda biased =O)
Full House =D
OMG it was my first Kdrama! But anyways~
It's a good romantic-comedy. I mean Rain was in it xD You'll laugh and maybe even cry at some parts (depends how hardcore of a Kdrama addict you are =P) It's one of those "love square" romances like you know there's the main girl but she doesn't love the main guy (who typically fights/argues with) until later. And then there's the second "good guy" and also the second girl (usually the jealous "evil villainess" in the drama).
On a scale of 1 to 5 (1 being the lowest, 5 = highest) I would give it a 3 and a half. I think I've become more critical mostly because BOF and You're Beautiful are my favorite ever dramas xD
My Girl~
I loved this drama, you can definitely add this to your "must-watch" list. It's hilarious and does have its sad parts (like all dramas have anyway). Lee Jun Ki was in it!! I don't know if that will motivate you to watch it but...lol I recommend it! ^^
4 out of 5 ;D
Goong~
It's a decent drama, I liked it but I got bored around some parts. "Love square" romance once again, but the theme is unique. Lots of people loved this drama, I was not obsessed with it though. But the guys are good-looking xDD It's quite funny, you'll probably like it =)
3 and a half out of 5 ^^
Basically yes, those 3 dramas are worth watching~
I watched the first episode of IRIS but it was too intense for me xDD I'm a romantic-comedy kind of fan soo that's why. I mean I suppose if you like action-packed-heart-wrenching storylines then you'll like it I think. Or if you REALLY like TOP then go ahead lol.
Siwon was in Oh! My Lady (but you probably already knew that).
I've heard most people like/gave good reviews of Shining Inheritence and My Name Is Kim Sam Soon.
Uhh don't know the others too much sorry xP
I need to catch up on watching some Kdramas...haven't watched anything since You're Beautiful xDD