S!
At the altitudes which most battles are being fought in this arena, (1000-5000 ft) the best plane is the 190A5. It has one of the best climbs of any aircraft, (the G2 may be a little better) deadly guns, great roll rate, excellent instantaneous turn rate, and quite a decent sustained turn rate with WEP. Plus it is much faster than anything except the P-38L and P-51b.
Used in pairs, the 190 is basically unbeatable.
And no one seems to be flying the two U.S. planes much.
Personally I think the P-51 should be eliminated, but the P-38L isn`t imbalancing enough to be a problem. It may climb better than the P-38F, but turnrate is probably worse.