I went for Hufflepuff on this. I don't really see her in any of the houses...she seems almost completely in a house of her own. She falls to pieces when Edward leaves, so I'd rule out Gryffindor...she's not able to face life without him. She gets good grades and she's pretty mature, taking care of Renee and even Charlie to an extent...but, I wouldn't say she's particularly clever like a Ravenclaw. Though Pottermore does explain ravenclaws as being somewhat eccentric and sometimes viewed as quirky...Bella is certainly quirky and out of step with the rest of the human world, but I still just don't see her in Ravenclaw. But I don't see her as being ambitious at all, which is Slytherin. She banishes herself to Forks, which she HATES, and she doesn't want to stand out, but to blend in. Slytherin, to me anyway, represents an ambitious want of power or influence. Bella doesn't have that. And she's not real cunning, either. Which leaves Hufflepuff, which is kind of the "other" category. She is extremely loyal, to both Edward AND to Jacob. And she defends both of them to the other...she's like the badger that won't stand up for herself so much, but she will go to any lengths to defend those she loves. And equality is very important to her...she doesn't like double standards. She wants everything to be fair. That's distinctly Hufflepuff.
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