Name recognition in popular vote.
They've heard about the He-111..... they've seen a movie once.  Cockpit reminds them of the Millenium Falcon.  It looks "cool" --- never mind it's hey-day was the Spanish Civil War.  At least BoB senerio gets an addition.
It will come down to the B-25, He-111 and maybe the Yak 3.  I have doubts about the P-39 now, since the mid-war G.55 got early cut.