I was thinking that alongside all the rather tepid or tame dorama kisses (and there are a-plenty especially in jdoramas), there are actually quite a few really good ones.
The ones I came up with are the kiss after CG tells Shin she loves him in Goong (OMG, the spinny camera, the hot frenching, the works. Whoa), the really gorgeous, dark and spinny kiss in A Love to Kill, on the beach, and it's spinny, and he is totally devouring her mouth and it's doubly delish because their emotions are so messed up at that moment (and unless MVs I've seen of this lie, this isn't the only hot kiss there), all the serious kissing in Tokyo Juliet, but especially the first proper kiss between Liang and Sui, because she kisses him first, and in front of his evil father, too, and they are really getting into it despite the audience. And the kissing in Devil Beside You isn't little pecks either. I am about halfway through and there has been a-plenty and I am especially thinking of the cool horizontal one they do literally on the road, with the cars all around them and her really kissing him back. There is Silence with that kiss at Christmas (I have no idea what they are saying to each other, but the scene kills me), and the cute if tame kiss from Meteor Garden in his house after DMS rescues SC.
And then there is my favorite dorama Mars, where I think the leads wore each other out with the kissing :P and there are so many amazing kiss scenes, but especially all that really hot kissing prior to sex (hey, any time you go from vertical to horizontal without breaking the kiss, it's HOT) and my favorite kiss when she asks him to kiss her and he kisses her across the metro turnstiles:
Even the Japanese Majo No Jouken has that gorgeous, teary eyed kiss when they are both kneeling in the library.
So yeah. Not too bad.
Any other cool dorama kisses I should know about? I know It Started with a Kiss has some, but I haven't seen it yet (though it's on the uber short list) and Pride is supposed to have good kissing too. Others?