109 E should probarly roll a bit better, Spit 1 too maybe. 110 roll seems good.
Karnak, think you're wrong about the G2 though.
To compare it with a G4 is a pretty bad thing, the reason the G4 climbs that much worse isn't the extra 400 lbs of Mk108 + ammo, it's the radar + radar antenas.
Since it was a night fighter, it allso used flame dampers, and those slowed it down alot too.
By judging from all this, the G2 should have the performance it has when compard to the G4.
The G4 was a night fighter, it had radar which gave it much more wieght, but most important, it had antenas and flame dampers which caused high drag and slowed down everything with the plane.
So all together, although I don't have any data, I am guessing the G4 is about 1000 lbs heavier + the high drag antenas.
Widewing, yes, the 110 got slaughtered against single engine fighters. However, although a MUCH better fighter then the 110, the P38 too, didn't do well VS Luftwaffe, and Galland him self said, when there were P38's in the air, Luftwaffe were had an easy day ahead of them.
No twin engined fighter should be able to hold its own against single engine ones, only one that might have been able, more or less would almost certainly been able to do it, was the DO335. (not counting twin engine jets).
And yet, the P38 is about the most leathal fighter in the game with superb low speed handeling, turn rate, climb rate and a good roll rate.
Mosquito too, is truely great, turns exelent and fast and accelerates VERY well.
Real life tactics etc, has been proven "wrong" in AH numerous times, B26's and B17's dogfighting, making loops and rolls, main LW tactic of HO on buffs work as bad as going in from the 6 in AH.
List could go on and on...
The radar is the difference.