I have both Vue and Bryce but Ive put Vue on the back burner. Bryce, having been around longer and having a better reputation than the Johnny-come-lately Vue, became my steady stable for terrain generation. Although Vue has the more traditional GUI, with which Im quite familiar with from the use of 3D Studio over the years, I find it less intuitive than Bryce to use. I think I would use Vue more if there was interchangeability between it and Bryce. With Bryce, it was love at first sight even when it was solely relegated to the Mac domain. Both packages can produce gorgeous scenes, but Bryce is my baby for terrain and background generation as it stands now.