Actually they are all 7.5mm (.295) guns. The French Hawks didn't recieve heavier calibre armament until in Finnish hands.
Regarding the French aircraft...
If the want is for historical fighter to fit to the Battle of France campaign, the best candidate for that would be Curtiss Hawk75A. But if the want is for best domestically built French aircraft, then the choise would be Dewoitine D.520.
HTC Give us French Aircraft!
