I do not prescribe to this "womens bike" thing. Women come in all shapes and sizes just like men and they should choose what is right for them. Sticking up for the beemers a little, they do seem to be gentle on lady riders. The 650GS, Rockster, 1150R and the K1200GT all seem to be well behaved enough without the need for bulging muscles to control them.
I think the new twin may also be a popular choice.