Yea I agree wiht lots of what was said. I think the show was getting better each season until 5. Im not a total downer on that season as there was a lot of good stuff going on, both from the book material and show created material, but the story telling wasn't as good. Certain plotlines, specifically Dorne, were just poorly done.
I will say this though, the show has strayed further and further from the books, but I do wonder if some of those changes are part of the reason why season 5 was so dull. I think there was a lot of set up there for future plot lines, specifically Dorne.
Personally, I still think it's the best show I have ever seen.