Have to agree with Kweassa, Grits, and Krusty's observation. The majority of pilots are looking for the "uber-ride". Spixteen, LaLa, Niki, Pony, Dora (only one of these with a good K/D ratio); whatever they consider "the best". That's one reason why the crowd is always in the Late Arenas, not Early, Mid (both of which have higher caps all the time for some reason), or AvA.... access to those planes.
(Disclaimer: Now, I'm usually in the late arenas myself, but I'm following the crowd for a good fight. I'd just as soon follow the corwd to AvA, Early, or Mid.... but that is not where they are at. And yes, some of you have seen me in La5's and Niki's on occassion in the past, and I still fly Dora's and Pony D and B's at times.)
I still monitor the Help channel in game, and many new (read as: totally clueless) pilots will ask "what's the best plane", "what's the fastest plane". They are looking for a twitch shooter game. They want to be in the "best ride". Blaze straight ahead in some version of point and shoot. Quick self gratification. Some are score.....chasers. Many not into any kind of cooperative play. Check 6's less common from them (and in the arenas in general of late). Some want (or need desperately) every advantage they can get.
Of course, the K/D ratio of these "uber-rides" are not spectacular in any way. There *are* some good spit, lala, and pony drivers out there, that can get their planes to perform and are good sticks; but the K/D ratio sez that the majority of those plane's pilots are not that good, despite the "uber" tag.
Then there are the real sticks out there. They do well flying a particular ride, or sometimes everything, other than "the popular" rides. They fly a plane in LA that is outclassed by part of the planeset, or takes skill to get performance out of it, or has some other quirk in it's nature.
I'm not in their league, and I don't try to master just a few planes from the planeset. I've found the Ki-61 and the Fw190A5 are great for taking on GV's. The Ki-84 is my favorite dogfighter. I'll use either the Bf109-K4 or Bf109-G14 with gondolas to intercept buffs, and Pony B's or D's to escort them. Only Spit I fly is the Seafire from Carriers. C205, La5, Yaks, F4, or E4 all fun at times.
And the Spit16 does not fill the role the Ki-84 previously had, GRUNHERZ..... the Ki-84 never had that great a following in AHII. I've seen it's use in-game up lately, probably due to recent threads like this one, or new players that actually have bothered to check Soda's website write-up on it.