I'll take a-go at answering this one now: Tywin Lannister. Without a shadow of a doubt and in both the books and the show. No one in Westeros cast a bigger shadow in the post-dragon world than Tywin.stigsyv1 wrote:I agree that tyrion is more suited to advising a ruler than ruling himself.
I hate sansa stark, I know she has toughened up the past few series but she is still just so annoying.
Now to the question who's death do you think has had the most impact on the state of the iron throne ?
The Targs, without dragons for some time, were being seen as less and less of a threat, which led to Robert Baratheon feeling he had a chance at a successful rebellion in the first place. But Tywin, once he rebuilt his families legacies by eradicating the Reyne and Tarbeck families, (the former of which being the basis of the Rains of Castamere, the song that follows Tywin wherever he goes like a morbid theme song) became as feared a figure as could be.
Combine this with his unmatched wealth and penchant for giving loans to the highest ranking people of Westeros, who he could then wrap around his finger, and you have a figure who was king in all but name by the time Bobby B sat the iron throne.
His grip only became surer when Robert died and Joffrey, a boy in both sources, took the throne and Tywin was named Hand of the King. Instead of being obscenely influential, he was outright controlling the seven kingdoms. He was also cunning in ways his oldest two children could not appreciate. Where they were impetuous and impulsive, Tywin was careful and calculating. He also commanded fear in both of them and even Tyrion and he could keep them under his thumb. Even Petyr Baelish and the Tyrells tread carefully in the face of Tywin. When Tyrion killed him, all bets were off and as we saw, the game of thrones descended into chaos practically overnight, as everyone saw Cersei, a crippled Jaime and their offspring as a weak heir to Tywin's legacy of intimidation.
The one time he even looked to be remotely in danger was when he had Robb Stark and the north to contend with and that boiled down to Tywin's army being spread too thin to deal with containing one king while two other Baratheon kings threatened to descend on him at the same time.