for me i personally go by the first ten minutes...if it cant suck me or keep me intrigued then im out...i know its really picky but thats just me after that its actors then plot and sometimes it just depends if i want to watch a certain genre or not subbing is a big thing obvs
PLOT and GENRE - i rarely care about the actors or ratings. I believe the the first 2-3 episode should be good enough to get me enticed, I rarely drop any drama, unless I want to smack the actors for ridiculous portrayal.
I let myself have different dish from time to time. Though psychological drama is my favorite I watch other genre in between.