I'm still hesitating between making them British or Japanese.
I'm using the AT-43 Red Blok ones for Russian and the Mak Mélusines for Americans.
Go for Japanese, since I haven't seen anyone else do their army. Then you could also use them for SF manga-style games - but you would need to find some schoolgirl-style pilots
I just received three HAFS Gladiators from HLJ today. I already have SAFS converted and painted as German and the intention was that, since the Gladiators have the same styling, these were to form a core force for my Germans. However, now that I see one in my hand I think it would look great walking through East Asian boonies. I may therefore paint one (or more) up as Japanese.