Other.
I've done it all though; rollerset then flatiron, air dry til damp then blow dry then flatiron, air dry til damp then blow dry then hot comb, blow dry wet hair then hot comb but gotta say that I'm happiest and get the best results from either air drying til damp then blow dry or blow dry wet (not dripping) hair then hot comb.
Hot combing has made me very, very happy.
BTW, I do a heavy protein deep conditioning as a prep, use a blow dry heat protectant spray product, ultra sheen satin press then use an electric hot comb.