1.) For each tree made in bryce, it slows down bryce tremendously for rendering, in Vue, it does not. Quality for rendering trees are the same in both Bryce and Vue. 2.) For more accurate and powerful, is highly in doubt. 3.) The tutorials and community for Bryce over Vue is higher, but not the said amount previously :) Vue is just not a well known product to the netizens. 4.) Vue is stable, depending on what OS you are running. With that said, Bryce is unstable on some systems. 5.) Bryce made trees, created in B5 cuts down rendering tremendously. Best off using model trees in another program and import them... Vue 3 has the advantage there. Except now, on Vue 4 it has a plant creation section also, I think Im going to have to buy it and do a better comparson. 6.) For some reason, it took a 3rd party to allow direct import of Poser files, VUE 4... Bryce and Poser was owned by the same company at one time, and they still had NO compatiblity between their own products... sad... 7.) Have to admit that Vue4 pics looks better then Bryce5 8.) Speed Speed Speed!! With high(er) quality then bryce5.. hehe and nope, I don't use Vue too often, mainly because Bryce5 offers multi-computer support :) and is a bit easier for me to use then Vue. :P Bah, maybe time to switch.. lol.