Ahhh, the dreaded saddle issue. I recommend getting your sit bones measured - either by your lbs (you sit on a foam pad and they measure) or sit on a piece of white paper on the curb and measure. A lot of women seem to have sit bones further apart then men and "standard" saddles can be too narrow.

Like everyone has mentioned it is a very personalized item. I finally found the Specialized Dolce saddle to work for me and use it on both my road and mtb (it's considered a road saddle). Best of luck to you!