Ive found reviews on RCU Magazine for Reflex XTR, Phoenix, and G3. The reviews were done by Michael Parsons.

Phoenix - Mar 2007
XTR - Jan 2007
G3 - May 2005

They all get the same rating for flying pyshics?
From what Ive seem G3 physics were well below XTR for Helis. Not sure about G3.5

At present Phoenix gets the highest rating. But with many updates appearing it may not be a true comparison.

I do Heli and Fixed Wing. So im after realistic phyhics for both. I want the scenery eye candy too. This is not just to learn more advanced manuevres on, its to get an RC fix when i cant fly my models.

Are there any plans for recent Reviews of G3.5, AFPD and FS One .

Im leaning towards Phoenix at the moment but would be interested in some updated reviews of the others.
If anyone knows any links to other reviews online for the major sims, please advise.