There is one thing that should be addressed and that is air speed. I too believe that a heavier airplane handles better than a lighter one. Too heavy and the engine quits running, you take whatever shot you can on landing it. If one wants to figure in wing loading, thats fine but the higher the wing load the more speed it will take to fly a model airplane or real airplane in a stable fashion. When was the last time you saw a military or passenger airliner land at a crawling pace? They all need to maintain a certain air speed or they will not fly. The same holds true for model airplanes. I have several planes in the 20 lb range that slow down nicely without any bad habits because of the amount of wing area, that a 40 lb plane of the same dimensions just couldn't do at the same slow air speed without tip stalling. I guess what I'm trying to say is that wing loading, wing area and air speed are all contributing factors in what we do. Enough said.
Have a Great Day,