Bryce's render times aren't that bad :) Most of my images (barring anything with DOF in it) don't take that long. Some images do take a while, it depends on how complex they are and the lighting in them. I've used Poser only for figures that I import into Bryce so I'm not sure how long a complicated scene would take in it and I'm really not sure about Vue.
It just kind of depends on how long you're willing to wait for an image to render :) I find if one's taking too long, I'll open up Poser or another window of Bryce and do something else while one's rendering. There's always the "plop render" function if you're really itching to see what a particular area will look like.