Farstrider

Arya will end up like Catelyn. Sansa will fall madly in love with a man who will later kill her just like her Aunt Lysa. I don't think Sansa will live long enough to go fully insane.

The punishment should fit the crime. No one will support the death penalty for shoplifting because it's out of proportions to the crime. Robb betrayed the Freys and dishonored himself. Robb sucked at being king but Walder taking the punishment to that level wasn't justice. It's the same morality dilemma between Jon Snow and Janos Slynt. Slynt insulted Jon but in no way did it justify Jon killing him. Walder was wrong to murder Robb while Jon was wrong to murder Janos.

Dany won't come to Westeros until right at the ending of the last book. Justice and the lack of it is the root of all conflicts. She needs to stop the slave trade first before she can return to Westeros.

I can see why Aerys would reject Rhaegar. A Married Rhaegar beds a young girl. You say okay. But his wife is from an important family ally who holds onto a grudge like a dog to a bone. A man who would rule the kingdom ought to know better. Aerys knew his first son can't rule.

Viserys could have done better and done right by his successor. Step down and give the kingdom to Rhaenyra. It's what I would have done.