110 if you don't expect heavy resistance. And for 17,000 lbs of aircraft, she can be a real handful. That and any snapshot is almost a guaranteed kill.
If you're looking to hit a CV, then scoot, the 190F8 with rockets is hard to beat.
If fighting is more of a priority, I always just took a bomb on my A5. Of course that's just me. I would also be inclined to do the same thing with a G2. I'm a left guy, so for me those made the best attackers, because they were what I knew.
Point is that there is no 'best' unless its also best for you. If you do best in a P40, then take a P-40, performance be damned.