...I think that WWII aircraft are the optimum for dogfighting enjoyment.
Have to agree. Plus, all the other types of air combat that matured during WWII - paratroop attacks, strategic bombardment, effective air to ground support and naval aviation make a WWII environment more interesting and enjoyable sim for me. Some of these maybe have been first employed in WWI, but really became effective in WWII with the types of planes, armaments, and communication advances introduced.
Will the WWI arena support radio communication?