I really wavered on Sansa. But as a Slytherin with a family of Gryffindors, and how everyone looked down on her because she had been 11 and wanted to be a Lady and so she learned all the things she believed a Lady needed to know--given her extremely limited childhood perception of what that meant. She just wanted to be queen. She wanted to be beloved. There’s nothing wrong with that.
So then....she went to King’s Landing and was repeatedly traumatized, usually publicly. And when she finally escapes after 3-5 years (?) years, she goes the fuck home and begins to fortify their shit, carefully placing her aunt’s men around her, because she knew they didn’t trust Baelish and neither did she but they were all going to die if she didn’t...a Gryffindor or Hufflepuff might have been more likely to dig in her heels and try doing what they could with their own forces, which would have led to them all being slaughtered.
A Ravenclaw, having been exposed to the Game so early, might have been more likely to start playing much, much sooner. And if that were the case--things would probably be very different (she might have also been far more likely to misstep and be dead).
But Sansa didn’t (she’d had it ground in her face from age 11 (13 in the show) that she was stupid and she very much believed it; most people don’t naturally come to the awareness that they’re ignorant or stupid until much later, in my experience), unlike say, Tyrion--who surprised himself with how quickly he picked up on the Game and actually enjoyed it. And when (in the book) Sansa meets Margaery’s cousins and realizes that they were exactly like she was before she’d come here. That all these highborn girls had been raised on this bullshit veneer and they were older than she was. So she carefully tiptoed around a nest of snakes, knowing they wanted her claim to Winterfell, learning from them, careful and cautious and meekly humble and didn’t somehow get killed. That’s pretty much amazing.