What we need is a top ten pilots list for each type. Then you could see how the various planes really stack up. There are a lot of guys out there that simply pork the stats of the planes they fly. The P51D is the most popular plane, because it is so well known. Everybody new just has to try one. While they are in the learning process, and discover that the P51 is a deathtrap for newbies (contrary to its UBER status) the newbie hears channel one chatter about the UBER La7, so they try that next and pork its status too. Lather, rinse, repeat. Finally, they come down to channel two.
Newbie: "What's the best fighter to fly?"
Common answer: "Try a Spit"
Then the Spit gots porked, too.
My K/D in the La7 was 26.75:1 (107 kills and 4 deaths). It should have been over 50:1, but I snuck above 3k twice and fleet ack got me both times. I did get killed twice by actually users (tailgunners if I remember correctly). If, I can do that and I know I'm no wonder stick, then what can the really good pilots do with it?