Grizz: The Spixteen is a 344mph plane that gets upped under vulches by absolute noobs and strafed on the runways all day and night. Yet is has similar k/d to the 365mph P-51 flow in a more "conservative" manner. That has got to tell us something...

I think Eny should be based primarily on 1. Deck cruise speed
Does this mean you would leave out WEP? Even though 5 minutes of it is usually ample and 9 minutes is an eternity of WEP for MA purposes? How...
convenient.
2. Ammo Lethality 3. Ammo Quantity. I think these 3 performance aspects will dictate arena performance at the highest accuracy. The Spit16 is the exception.
This standard would inevitably shoot the Doras, 152s, K-4s, and Lalas near the top with the Ponies and 47Ms. This would be good in most ways though, would be a heck of a lot more fair to lump all these planes together and I would be in 100% in favor of it if I didn't believe in the importance of maneuver.
If the Spit16 has other qualities good enough to make up for mediocre top speed, it is possible other planes do as well.
109s, Me262s, Me163s, and the Ta152 are probably the toughest planes in the game to dominate in. How often do you see players land big kills in any of the planes listed? Rarely.
163? Are we talking about the same plane here? Because I thought thought the 163 was the one that turns like, I don't know, probably a 109 and has the speed, climb, and acceleration of a rocket. Kurt 4s are great MA planes, and as for the Ta-152, I seriously think one big popularity inhibitor for the Tank is the bad write-up Soda gave it. Look at his articles on the P-51 and 152 respectively. I don't think he gives a quite fair picture of either, but his page is what everybody reads for advice on the planes coming into the game.