F4U-1C? I fly it when looking for Buffs or vultching a CAP'd field.
Squads? Not for me, but I think the guys should fly whatever they want.
Nikki? It's a great plane, just a little slow against some of the other planes in the set. You have to let them bring the fight to you.
109's? Love 'em, but you can sure take a beating if you get caught by several fighters at once. 1 vs. 1 it's beautiful.