Yes, it really is a bit confusing. But if got everything right, there are not so many choices left for me:

Either the Team Pro S, if I don't have problems because it's too short - or one of the B17s (also depending on how wide the B17 and B17S actually are...). If both of them are too narrow then there is only the B68 left, but I'm not sure if I would like to have this one.

I often ride wearing skirts but didn't consider this as the possible reason behind the shorter womens saddles. But I guess it really could make things easier when wearing shorter skirts.

I'm not so sure if it would be ok for me to get a shorter saddle... I don't have much experience with different saddles or even saddle positions. I just screwed the Ruby onto my bike and tinkered with the position until it felt right and didn't think much about it since...
On my commuter there has always been a horrible squishy uncomfortable saddle and I have always been too lazy to change it (for the last... um 12 years ).