I own all 3 Vue, Bryce and World Builder, and I like them in that order. World builder has a lot of potential but it just doesn't work. If they ever got the bugs out of World Builder I'd move it up above Bryce in my favorites because it imports Poser files AND can do things like create meadows, forests, fields of tulpis, just by sprinkling "seeds" around and each plant is variated in truly realistic but random ways - awesome - but it doesn't work! VUE is great also, but you gotta buy extra stuff to get more plants and variety, and then you still have to place each item one at a time, but it works well with Poser and renders nicely. Bryce is just clunky and out dated, BUT it has tons of free stuff available and a large user base to help solve problems. Importing Poser is a PITA (big-time) but once you get the hang of it it is easier. Even so, Bryce does some of the best scenic renders I've ever seen. Other candidates not to be overlooked are MoJo World and Terragen (a free product). That can do some pretty amazing atmospheres and terrains. They work well for creating beautiful scenics to import as a background image into Poser, rather than exporting Poser stuff into them (but I think you can do that with MoJo World - just not sure as its the only one I don't own)