I love pdf manuals, as they are easy to search.
I assume both proggies have that?
Nope, DS4 has this:
and that is pretty much it.
As far as the OP’s question - can’t really answer that here - doing a point-by-point comparison between DS4 and Poser 9/2012 is considered an “unreasoned criticism” and/or “attempting to provoke a “site” or “app” war,” as per the TOS.
Poser 9/2012 does some things better than DS4.
DS4 does some things better than Poser 9/2012.
There is no reason that you can’t work both products into your workflow - it certainly doesn’t have to be an either/or situation.