Judging by the Westeros forums.. fans hate every character? I've seen huge hate-wagons for Bran, Jon, Catelyn, Ned, Jaime, Sansa, Arya, Robb, Tyrion...
Loads of fans hate Sansa but she's one of my favourites, I think some of George's best writing is found in her chapters. Especially the Eyrie stuff. Really melancholic.
Loads of people on Westeros don't seem to get
the series. They'll hate characters for doing bad things, and only like the characters they whitewash in to being "good guys". I'm currently banned for a week due to finally snapping at a Stannis fanboy called E-Ro.
And I love
Stannis. I just don't feel the need to whitewash him so much he doesn't even resemble the character of Stannis Baratheon. He's obviously not a "good guy". He's a character who's moral absolutism frequently tip him between making likable and unlikable decisions. He's not some flawless 2-dimensional paragon of good.