I liked the third episode, completely different change of pace from the first two.

I felt that the Renly-Loras-Margaery dialogue was great, really capturing a dynamic that only seems to be implied in the novels. I also enjoyed the Night's Watch scenes, Yoren went out like a real boss, just as I imagined.

The standout part for me though was how well they directed Tyrion's duplicity with the small council, by proposing different plans for Myrcella to Pycelle, Varys and Littlefinger; the transitions between the three and their different responses, interlinked with Tyrion's own musings on the Martells/Greyjoys/Arryns, was portrayed brilliantly by all involved and there was a real sense of satisfaction in seeing the snitch's comeuppance.

The only part I disliked was those involving the Greyjoys, but then I've never liked the principles of their house and Theon's treachery was always a major annoyance for me, so seeing these things on-screen only served to exacerbate those sentiments. :P