I think I'm gonna blame the OP for all of the ''ahah-no.gif'' replies in the first page from people who didn't even read anything he wrote, you could have used a slightly less awful thread title.
I can't say the show is a massive pile of garbage, it can be entertaining, it can deliver with some great direction and/or acting. however you can't pretend GoT has no major issues or that the writing isn't a complete mess most of the times, because it simply isn't true. you don't need to read the books (oh, I didn't!) to realize that.
here's another ''it won Emmy Awards! The show must be good!'' exquisite post.
one of the best series ever released! Ah, if only.
Now now, I read the title AND skimmed the OP only to see the words "ASOIAF" and "books" everywhere to know this thread wasn't worth my time. I will give it a go anyway.
GoT is far from a perfect show, but in many ways the books held it back just as much as they made it great.
It just isn't possible for them to include every little thing from the books, and they have to cut so many characters out that it almost would make more sense to completely invent new storylines - that were at least partially based on the books, as opposed to barebones representations of book plots and characters (Euron, Dorne).
This would be easier for the writers if they weren't already out of book material, which is not what I think D&D expected to happen already (or George for that matter). So yeah, I would argue any quality downturns for the show could be just as much of George's problem. D&D need to race to the end because they simply don't have book material to pad out the later seasons.
The Tyrion characterization one is about as petty of a book purist argument as they come, and a prime example of why book purists just don't understand the sacrifices and changes that need to made in order to maintain a megahit TV show. Peter won an Emmy, is one of the most popular characters on TV, is insanely likeable and fun to watch. The show is confined to 10 50-60 minute episodes a year (even less next season) and wouldn't be able to do a multi-faceted Tyrion justice, and would certainly lose all charm and popularity and marketablility that Tyrion has brought for the show.
If you wanna knock GoT, or offer suggestions, it would be nice to see a compelling argument without even mentioning the books. I've really yet to see one, and again I am not here to telll you the show is perfect. There is valid criticism in things like Dorne in season 5 (acting, writing, the camerawork), and Arya's Braavos plot last season (the whole chase episode). But arguments that compare the show to the books will always be weak to me.