POVRay is very impressive, but considering the relatively low level of detail of Poser models and environments, and judging based upon the images on the PoseRay site, it's not much better than Vue 5 for Poser work, if at all. And I guarantee you that Vue 5 is much easier to use with Poser. They've designed the software to make Poser work easy.

And for me, at least, it's easier to get consistently good results from Vue than it is from Firefly. Renders do take longer, but the result is considerably better and renders can be paused and resumed. I don't know if POVRay can do this, so don't kill me if it does. It's just another nice feature that Poser doesn't have. While I am astounded at the level of detail in that POVRay Hall of Fame, I don't think it's noticably better for use with Poser, and certainly not as easy to use with Poser as Vue 5.