Well guys, my opinion is that the Spitfire Mk.VIII and Mk.XVI are easy-mode fighters. Both are among the very best dogfighters in the game. I believe that the Mk.VIII is superior to the Mk.XVI due to its greater stability at the limits, which more than offsets the XVI's fast roll rate. I fly each of them now and again, because they are simply fun.
That said, if I had to pick just one non-perked fighter to fly 100% of the time, it would be the F6F-5 Hellcat, hands down.
My regards,
Widewing