James, To answer your question regarding stands, Dragon includes stands with all their models and give the option of removing the wheels or keeping them on. Gemini sells stands separately but their wheels don't come off.
Regarding who is the best manufacture, I had a poll last month on my website and 55% said they liked Dragon Wings models over Gemini, Herpa and Aeroclassics.
P.S If you want more answers to your model questions, I suggest you try asking them on the D.A.C forum. It's website is http://www.diecastaircraft.com