I've tried a lot of it.
Acerbis: A+++++ I LOVE mine but not too thrilled about this year's colors (gray and pink) Find last year's colors (white and blue) on
www.mxsouth.com in the closeout section
Fox: A Old Fox was better, they dropped the 360 line in women's cut but you can still find some sizes in the closeout section on
www.mxsouth.com New stuff is cheaper and only comes in pastels.
O'Neal: B Decent fit, rides a little high on the waist but long in the legs, cheaper grade so it might tear easily
MSR: A- Nice fit, best color selection, decent graphics, cheap-ish construction
Vixen: B Great fit, super comfort, seems durable, but not everyone is going to like the color/style.
I think Fleshgear and LBZ and some other "freestyle" oriented brand also make women's baggies but I won't support their product since I a.) don't want pastel pink or blue baggy pants and b.) don't like their ads. I don't know a thing about fit, durability or comfort.