IMO, one of the best poser meshes, that no one ever talks about, is the Ben/Kate mesh. It's a little bit heavy on redundant poly count (meaning, polys that could be better spent in other areas), but it contains almost no tris. Most of the muscle and bone definition is there to pull out rib cages and tone the legs and forearms. It's not a perfect mesh, it could use some fine-tuning of course, but it will subdivide better than most of the other Poser meshes. And sculpting it is very painless in ZB without having to increase res, because it is 98%+ all quads. This means you don't get pinching from tris and 6+ pointed stars that happens in other meshes when you try to sculpt, especially when working on HD displacement maps.

The only major area its lacking in is the abdominals and the outsides of the shins. Overall, the mesh is designed well enough that with some minor tweaking - spinning some edges here and there and removing some center-line stars, it's capable of being morphed into every poser human in the library, male and female, from the P4 toddler to the G2 gang and even a Freak build. I would also reduce it's mesh to around 28 to 30K, (it's currently at just over 38K total) - which wouldn't reduce it's morphability pretty much at all, and let the remaining 4 or 5K be spent in the mouth, eyes and finger/toenails.

With Alyson, Ryan, James and Jessi, I would rework their low res meshes so that their tris and stars are removed. From there, they would also serve as good starting points for heavy morphing, but Ben's mesh is already much further along, so it would be a better time-management tactic to use Ben. 

 

~Shane