I don't hate Sansa, though I have a kind of general disapproval of her-- not because of the mistakes she made, but because of her persistent too-dumb-to-live mentality. 11 years old is very young, but it doesn't imply stupidity. I hated reading Sansa gloss over what a dumb prick Joffrey was, and even once she's disillusioned of Joff, she still clings to the fairytale 'true knights are good and pretty and true and pretty and...'

Thankfully she is finally catching up to reality.

(Many of the other dumbass male characters we never get POV chapters for. I'd reckon there'd be more hate of them if we spent pages and pages in their heads watching their dumb thoughts. ...before they all die from their stupidity.)