When I began to download mods for my female Morrowind character for purely aesthetic & vain purposes (clothes), the process was fairly easy.
I didn't want the vanilla body, and the only viable option was Better Bodies. A vast improvement.
After applying Better Bodies, I downloaded countless clothes mods, looking for the ultimate variety in sixy lingerie. Needless to say I found it and then some. I had lots of fun dressing my character.

At this point I thought, hmmm... I like this whole modding thing. Why not try it out on Oblivion (I only had played vanilla thus far).
Surely there would be an even greater mass of sixy clothes to choose from!
Well, there was, kinda. Less of it was to my tastes, but wth. Sadly though, it wasn't a simple matter of installing a universal body type. You get the luxury of picking one!
I decided, after much deliberation, that Vanilla & Exnem (sp?) were out of the question, and HGEC (AA, A, B, C) with LL were the only viable options, the smaller the cup size the better.

Much to my dismay, of course, majority rules, and majority dictates massive melons. Now don't get me wrong, sometimes I can appreciate such things, but we're talking EE, FF, GG, HH here.
However, I did find a suitable, albeit strained amount of C cup items, but the prefered B, A, and AA cup items were few & far between. Also, at least 50% of them weren't very interesting to me.
That's all fine and dandy, but the real problem came in the LL lower body of preference that I had selected. I had only found one item, in all of modded Oblivion that didn't make my character's hips/buttocks shrink when I put it on. Ugh. It's like, with great customization comes great limitation. It was bad enough that the 'slots' had been reduced since Morrowind, resulting in less mix & match, but I couldn't so much as try on a pair of panties without it shrinking my body, or put on a bra without my briast size increasing over 6000%.

Then comes Skyrim. Oh how I am partial to the vanilla female's stomach. I also like the dirt spots/freckle things. With the advent of CBBE, and it's spawns, we have a new stomach that I do not care for. We do however have a smaller briast size, but yet again, there is a severely limited amount of clothing tailored for this. Its all briasts or no briasts in the modding community. Now don't get me wrong, most of the pre-CK clothes don't appeal to me anyways. The only thing I like is the leopard forsworn & it is for vanilla body. But when the CK does arrive, I fear for the worst. Of course, I'll try my hand at modding (there are too many faults to ignore and ideas to explore not to) but if there are any talented modifiers out there who can feel my pain, please dedicate some of your precious time to providing people like me with some outlets!

tl;dr
Need small briast/ large lower body extensive clothing shop & a popular body mod that retains the vanilla stomach and/or dirt (if possible) lol.

At least, if you feel this way, show some support!

Edit: also, the missing pants slot scares me.