wow.... all that for a simple question...

I like both applications... Happen to use D|S more because of the simplicity of  design and the fact that it doesn't take hours to load. Granted, you have to pay for the plugins, but really it depends on what you want. I've purchased a number of plugins for DAZ but find that the most useful ones for me are PWSurface, PWCatch, Handgrip, D-Form, Parameters Organiser,  and Finder alongside some freebies.
I like Poser for the way materials are handled (eventhough baffling at first) and for dynamic hair & clothing (although i rarely use them...). Also FIREFLY is a great render engine (to the exclusion of raytraced shadows looking weird - grainy...). But mostly...  for face_off's  plugins for skin and ambient occlusion. Poser is packed with features, it's true, and the learning curve isn't easy, but wonders can be achieved in BOTH applications with a bit of patience, persistence and vision...

At the end of the day... I don't think it matters what applications you use, it's your imagination that will allow you to be creative. Limitations can be overcome.

You can always export the whole scene in OBJ and import it into Poser...