RE: Which one!!!!!!
I've had the Pheonix Models Extra 300s for a few months now. I really like it. I'm not a 3D pilot - but believe you can expect a good pattern platform. I replaced a great deal of the hardware that came with the ARF, screws, fuel tank, wheels, etc. The cowl was excellent, however. I have an OS .46 FX on mine and would recommend that engine (or similar).
I would definitely purchase another plane from Pheonix - as long as you're prepared to upgrade some of the hardware you'll be happy. Let us know how it turns out.
-MA