I bet Lusche/Snailman, being a strat raider nut, has met far more 163s than spitfires.
Well, it's not that ecessive.

In fact, until the advent of the B-29 I almost never flew into "Komet Kountry" (tm).

But the B-29 itself would make a good example - I have shot down more B-29s than most players will ever see in their entire AH career. Not because I'm so dam good or have so much luck, but just because being a high alt buff hunter when flying fighters I simply encountered so many more.
If you furball or play the good ole smash'n'grab game, you might only see one every few tours. In both cases, it will be mostly Spitfires you are facing.
Well, as I'm now hijacking this thread anyway, I can also add this:
The ubiquitous Spit 16 is only rank 10 on my all time "planes most killed" list. I'd estimate that for most players it would be much higher ranked.