I can't say about the Cloud Dancer but I can say about the VF 66 Extra, It would depend I guess on what you want the plane for. The VF Line in not known for 3D if this is what you plan. The one I have is very stable and fast with a .91 two stroke. and light at 7 1/2 pounds with the setup I have. It goes together pretty fast and is a good buy for the money. Takes a couple of weeks to get one as I last heard. Anyway I'll do the best I can to answer any questions you might have. Check the thread below if you havent yet, lots of good reviews.
Miloh.
http://www.rcuniverse.com/forum/Vect..._943924/tm.htm