The fact that the Poser options are separated, while the Vue/Bryce/Studio ones are not, does suggest that the poll is meant principally to find out which version of Poser people are using.   The wording leaves something to be desired:

*This week's poll is all about software... what are you rendering in, what is your favorite, what do you enjoy the most.... all that stuff.... so you tell us... what is your favorite rendering program.

*So they have three questions, with potentially different answers (I tend to render in Poser 7, but I prefer Vue), but you only get one vote...   And can there really be anyone who prefers Bryce for rendering?