Mine is a three way draw between the Dautless with three speed upgrades and two manuevering (usually with the 37mm or 57mm as an add on), the P40 with the same set up, or the F4F3 with the same set up. I like the F4F3 because it has excellent manuevering when it is upgraded, and pretty decent speed. The P40 is good at manuevering and once the guns are on something, they are not likely to miss. Finally, the dautless is just plain cool looking, and its a real challenge to shoot down an enemy aircraft (other than a Zero) with only the nose guns. After one aircraft, I switch to the secondary guns. Every now and again, I also use the Do 335. So, what do you guys use???