Way too much to list, as they are all broken beyond repair.

Biggest problem is the badly made mesh topology that ignores anatomical correct muscle and bone structure, so developing new, correct shapes is nigh impossible. On the one hand edgeloops are missing, on the other hand there are tons of redundant vertices doing nothing.

(I've created versions of MIKI-1 that had 30.000 instead of 130.000 polygons and rendered just as nicely as the original long before Poser had SubD.)

Second problem are the stylized, unrealistic bodyshapes that ignore human anatomy. (MIKI -1/2 being the only exception, but her mesh topology is some of the worst I've ever seen)

Third is the bad rigging. Often magnets are used to "fix" problem zones but the results are generally pathetic. It's a spaghetti shoulders and balooning buttocks bonanza.

Finally there is the lack of any support to speak of. No texture convertor to tap into the vast array of Vicky/Mike textures. (Don and Judy being the only exception as they can use V2/M2 textures. Sort of)

There is WW support, but the results are usually not good enough for frontpage work and take way too long to convert.

 

My advice ?

Make a deal with DAZ and licence Genesis 1 or 2. (If we get HD technology in the future, there will be no noticeable difference between them, so I'd actually prefer Genesis 1)

Rework it so that it a) works natively in Poser and b) give it a new default morph it loads with so that Poser has it's own signature figure for marketing reasons. It would still be Genesis, but "our" Genesis.

(After all, Dork and Posette were licensed from Zygote which later became DAZ, so I don't see any "ethical" problem here)

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Other than that, copy Genesis as closely as you can get away with it.

(No ethical problems here either, as DAZ usually copies any new figure development as soon as possible. (T-chest and buttock actors were first introduced on a modified Posette. No buttocks and waist actors were introduced by Apollo and the Poser 6 folks. JCMs and ERC were a Poser "invention". And so on, and so on.)

Everybody copys, so again, look at Genesis and copy it, but raise the polycount to about 50.000 so it will render fine without SubD.

 

Any other solutions or half-hearted "fixes"  will just be a waste of time.

We need a new start, but we have to do it right !