F4U-1, just get a decent bit of alt and don't spoil your E when heavy. Fast, maneuverable, can dive like a brick and never loses control.
P-51B, lacks firepower but at typical high alt fights there is nothing better.
FM-2, Furball machine par excellence. Good for a bit of fun from carriers.
La-5, much better than a La-7 IMHO, much better knife fighter and base defender because it can turn. The cannons suck Nilfisk though.
P-38L, been flying this a bit. Pretty easy too fly but poor views. Need some more hours to get a feel for it.
Bf-109G10, a nice challenge. Torque, overspeed problems, horribly difficult to aim that 30mm, poor views. Climbs like a homesick angel though and handles better than advertised. And gondies suck.