I've only been reading the books after watching each series, as each of the books is basically each series. I'm amazed so far by how closely they have managed to stick to the books and to realise it as a series.
The Red Wedding definitely was a shock, but then we should come to expect it as the writer isn't scared to kill off major characters that have been there since the beginning.
BTW, has anyone also been watching Banshee? This weeks episode of that was quite a shocker too, as it showed in graphic detail how he killed someone in Prison.
Is TV getting a bit to graphic?