May be its the price of the diff aps that effects the voting, and yes i have seen a poser scene render with vray in 3d max that blew vue away.
Its down to what people can afford and after all if you look at some of the vue postings they have had heavy Photoshop work.
Lots off diff programs have people use art programs but the vote is by people who can afford certain stuff.
Biggest laugh i had was how on the vue propaganda board on rendo some people rant on about how many figures they have in scene.
1 shop down here an artist showed 1 chap how to cheat using vue and Photoshop, and he had a scene with 40 v4s in it, the guy was blown away until the artist showed him how to cheat and get the 40 v4s.
Then the guy realized take vue message board with a pinch of salt.
But i degres people who vote in poll only say what program they can afford to use as a lot of people cant afford spend lot of money..