if you guys are on the fence about it, definitely check out the books starting with book 1. I just started. There's definitely a lot more insight. There's enough added excitement and tidbits such that it's not boring as if you were watching season 1 all over again.
truth
catylin is a bytch.
also the stark family is much closer then the show led me to believe.
Sansa is bytch in the book as well but she is only 11 so that is alright.