You know, I always go for originality and authenticity myself, but I have to say, women should stick to Sevens and Citizens of Humanity. There's a reason why every girl has them - they look good on nearly every body. Some girls are lucky and can wear whatever jeans they want, but I'd say most should get a couple pairs of Seven/COH and stick with them. Can't go wrong with that. Oh, and the Brazilian jeans? Gross, man. Thank god I rarely ever see anything like that on campus.
There are actually many jeans companies that make jeans that "regular shaped and sized" women can look good in. It depends on the individual woman. I suggest James Preserved (now James Cured - make up your mind James), Paige Premium Denim, the Tru cut by Paper Denim, Saltworks, Denimbirds (Nudie for women) and Joe's Jeans, off the top of my head. And if you want the low cut Brazilian look, just get a pair of Frankie B super lows (2.5-3" rise.) Any lower, and double sided tape may be needed.