Not to make this a show-bashing thread, but I've noted the quality of the dialogue has steeply declined and some other nitpickings in season 5 and 6. I don't think D&D are doing so well without GRRM's written direction. If not for the plot points coming fast and furious, this season would be getting a much worse reception IMO.
I reckon we won't see a scene with the quality of the "Kingslayer" speech or its like again in the show. Unless it's Manderly's taken from ADWD.