Mel wrote:I guess the biggest problem is that us girls are all different shapes, not just different sizes (hey Cath

)
hahahahaha - thinking about that still cracks me up!
I agree with most of what's been posted already.
I hate pink. I hate pastel colours. I hate leathers that don't have the functionality you expect - why on earth would someone buy a full set of expensive leathers, only to discover it has no back armour (or space for back armour), no velcro patches for knee-sliders... etc. It's almost as if they expect the person to only wear it while perched on the pillion seat at a coffee shop, not actually riding in it!
Booby room is a another big issue. When I first started riding, I just had to suck it up and wear men's gear - and to get enough room in one area, it was too big in other areas (i,e for a jacket to fit over boobs and hips, I ended up with copious amounts of spare material hanging off my shoulders, around my waist and below my bum). I eventually found an Ixon jacket that was shaped well and was happy in riding gear at last! Then I went looking for leathers, and ended up getting a set custom made because I just couldn't justify spending so much money on something that fit so badly - I'd rather pay a bit more and have something that fits really well. I have noticed that there seems to be a lot more options in women's leathers now than even one year ago though, so that's good news.
Basically, for too long women's bike gear seemed to be men's gear with some adjustments. That doesn't work - they need to be designed for women from the beginning. With breasts and hips in mind, particularly in the larger sizes.
Now if only they could design a helmet that doesn't give you helmet hair...