Well, the battle of hardhome was fucking epic as hell. And that wasn't in the books.
And, well, a dickless man fell in love with a hot chick. That didn't happen in the books either.
So it really balances out. There are pros and cons to both books and show, but I like them both. You must simply accept that they are not exact clone duplicate copies of each other. Lets be honest, if the books never exsisted, I don't think there would be a SINGLE thing to complain about on GoT. Its just these screamers who rage at every deviation from saint martins vision of westeros.