Graphics are often some of the best around and probably has the most stylish open world out there.
Has an amazing musical score.
When everything clicks and you play well, combat can be truly great with a tonne of options available and a real sense of sword fighting.
Story is a slow build but ramps up to some amazing and engaging moments with great growth and character progression.
Has some of the hypest moments I have seen or played ever.
Does a great job of using environmental story telling to drive missions, little touches add to a more natural feel to investigating than pretty much any game of its type.
This idea that GoT is average is just flat out wrong. Is it perfect? No, but any issues are minor and don't detract from the overwhelming highs it has.