If I really, really, really like the drama - I go with dramathon (usually average length kdrama for a weekend) because I become obsessed with story and must finish it ASAP (cliffhangers are killing me), but if drama is average, my pace becomes slower...
Some of my dramathon titles - The Greatest Love, Autumn's Concerto, Oh! My Lady, BoF, I Need a Romance, Que Sera, Sera, Queen In Hyun's Man, Reply 1997, Shut Up: Flower Boy Band, Soulmate, The Master's Sun, In Time With You, Buzzer Beat, Pride...