Some random observations, having read through the thread:
I'm in the Mad!Dany is unearned camp, although I like the idea of it, just not the execution. If Arya decides to take on one more assassination for the road, I'm warming to the idea of her being named the Queenslayer.
I thought the sudden ability of Dany/Drogon to figure out how to avoid getting shot was sort of ridiculous because there didn't appear to be a reason for it. And how busy were the smiths and engineer-types? Because they sure managed to assemble an amazing number of anti-dragon artillery in a short period of time.
I think they have written Jon into a dead end. He couldn't have been more ineffectual. I can attempt to understand where his head might be at -- he's still reeling from having risen from the dead, he now knows his true identity/parentage (and realizes his girlfriend is actually his aunt), and he very likely did not believe for one second that he/they were going to survive the Army of the Dead.
So, I can forgive him for being unable to think on his feet in recent weeks. But, that's just something else we weren't shown. How much time would it have taken to show him deferring to others on strategic decisions, acting confused and unable to concentrate, or just plain confiding in Davos that he was D.O.N.E.? I mean, I think he could have used an extra couple of weeks to recuperate more than anyone else, but alas.
Cersei/Jaime was just the worst. And I wasn't terribly moved by Tyrion/Jaime either. It was more stupid decision-making by Tyrion. I get that Jaime in the show treated him better than Jaime in the books, but Tyrion's loyalty to and love for his family doesn't make much sense. I can understand those feelings for House Lannister in the abstract and for this version of Jaime in the flesh, but I can't understand extending those feelings to Cersei.
Clegane Bowl was fan service. Yes, I said it. It went on too long, and it was improbable that Sandor got in as many licks as he did, considering that Zombie!Gregor couldn't actually die by stabbing. But I liked how it ended. Seemed fitting.
I'm curious to see how Jon, Davos, Tyrion and Arya are going to interact with Dany after this. Jon in particular -- who tells the truth, who graduated from the Ned Stark Academy of Right and Wrong (school colors: black and white, of course), who would swing the sword himself if he sentenced a man to death, who is a man of his word -- is going to struggle mightily with this mess. I really hope Varys put some plan into action before he died. Otherwise, I don't understand why he burned the one note, when it looked like he had multiple scrolls when we first saw him writing, or why he left his rings behind.
The little girl Arya was trying to help (along with the girl's mother), was holding onto a toy white horse. When Arya surveyed the fallen, after almost being crispified herself, she saw the body of the little girl still clutching the toy horse. Then, an actual white horse rolled up. Not sure what they were trying to say there, but ::handwaves:: magic!