Similar with another thread, but this time for 1940. Using the techology of 1940 and few years before that, envision the best possible fighter for the countries whose military aviation mattered in that time. We need plenty of fighters, preferably way before the September of 1940, certainly before November.
Bonus points for fighters that use techology of the day from a single country, thus multiple entries are welcomed. Ditto for taking into consideration the countries' needs - France will need something different than Japan.
1- and/or 2-engined fighters, as you prefer it.
Of course - no laminar flow wings, no multi-stage superchargers, no 30mm cannons, no fully-blown bubble canopies, no rear-facing radars etc.