1. Joffrey Baratheon: The King on the Iron Throne
I hate to say it, but this little blond bastard is sitting on top of the world right now. The two biggest threats to his reign, his uncles Renly and Stannis, are either dead or defeated. His hated uncle Tyrion has been sidelined, leaving his doting mother Cersei more powerful than ever. His arch-enemies the Starks are at their weakest point yet. Margaery Tyrell, a rich, beautiful older woman, has just thrown herself at him. His domineering grandfather Tywin is a wild card, and his loyal dog Sandor Clegane is gone, but Joffrey's proven that he's no great respecter of seniority or authority, and that he's plenty dangerous even without his chief thug. "The King can do as he likes" – and we know what Joffrey likes. For now, the game is his to lose.