2 Cents = The community has created some REALLY neat stuff for firefly.  Leaving those setups for a different "material room" is problematic for many attempting to create continuity between softwares. 

VSS / Matmatic, etc. 

 

EDIT:  If Poser has soft body dynamics and particles I would probably never use anything else.  Oh, it could also render faster...  You get spoiled in C8 / C4D.