Back in the Poser 6-era, Miki 1 had the most realistic out-of-the-box sculpting as well as expressions of all Poser figures, including the DAZ ones.

(Which were still somewhat superior, though, because they had the more efficient mesh geometry)

Sadly, her rigging also left much to be desired.

Here's a weightmapped copy of her, re-rigged in Poser 11:

So, yeah, while basically all Poser content has more or less problems, Poser itself provides all the tools to fix these problems, if you are willing to take the time to learn them.