Game of Thrones season 3 - A Storm of Swords

Regarding what is going to happen next season:

 book spoilers

I'm seeing a lot of people angry that Game of Thrones is so bleak and that the heroes keep dying and the villains don't. So the next big thing i'm looking forward to is the "Purple" wedding (Get it?) Seeing Joffrey and Tywin die will completely turn peoples opinions around and i'm looking forward to the reactions.