I am a Poser...  user. I started with Poser 4 Pro and currently use Poser Pro 2010. I think my favorite thing about Poser Pro now is Queue Manager which allows you to render outside of Poser meaning you can continue working in Poser while your queue of renders waits its turn.

I have tried D|S, but from its clunky "Fisher Price" (as someone once mentioned) interface to its functionality I just won't use it.

While Poser does have its own issues, there would need to be a significant overhaul to a near rebuild for me to even contemplate D|S over Poser.