I experienced Moebius as a pretty intense drama, a downwards spiral invoked by a family acting purely on their urges and instincts.
Breath is a strong entry in Ki-duk's ever growing list of films, positioning itself among his best work.
3-Iron is a silent journey, following two characters who don't talk to each other directly, but understand each other's feelings all too well. To be a witness to that feels like something special.
Since Bin-Jip, only Shi Gan was a small disappointment. Apart from that one, Ki-duk seems to be on a roll with a string of near-masterpieces almost uncontested by any other director.
Pieta is a pretty complete package. The film looks great, has a superb soundtrack, two extremely impressive leads and a boatload of symbolism for those who enjoy that kind of thing.
The Bow is a pretty logical evolution in Ki-duk's career. It includes many of the themes and stylistic choices from his older films while still lacking the slick execution of his newer ones.