I like Mad Men, but like you said its slow, but very well written. Breaking Bad is a little bit faster pace but really great story. Cranston (Walter) is amazing. I haven't seen Game of Thrones, don't know much about it. I've been using Netflix to catch up on my BBC shows this summer which has been awesome.
For Trell: Breaking Bad is basically about a high school teacher who goes into the meth buisness when he finds out he has cancer and his transformation to a badass mother*******