I think the way that Sansa and Arya played Littlefinger was about beating him at his own game, about showmanship, deceit and manipulation.... and what a fantastic play they made! It was Westerosi Three-Dimensional Chess! I loved it!
I think this entire season, the plotlines have be greatly abbreviated. And that is a real shame. That is why you don't really feel that invested in the whole Ironborn storyline and a lot of the other subplots. They just havent given those subplots their due. I understand why that is, given the complicated nature of the books,and Dan and Dave having to wing it without Martin's guidance, but it does feel like so much important action and explaination is missing from this season. I really feel like I have to read between the lines and make up explainations for myself....so many assumptions. Still LOVING it though.
My favorite moments were when Dany arrives in Kings Landing on Drogon....it really sent chills down my spine for some reason. I love the exchange with Tyrion and Cercei, and the Ice Dragon exploding the Wall was spectacular. Did Tormund and Beric make it out alive? I sure hope so.