No worries, sorry if I came across as a bit rah-rah. I can't help but get a little heated when it comes to Sansa and Catelyn.
I think you've hit the nail on the head there, despite what I think of Sansa as a person, she's a fantastic character, really well written and nuanced, with a fascinating journey that is unlike anyone else in the story. Sam is sort of similar, it's frustrating to be in his head, because most of us aren't that weak, but his development will be so much more potent.
I'm reminded of a great quote, that I think GRRM once said, about how the person who never reads only experiences one life, but the person that does read gets to experience many lifetimes.