You hit the nail on the head. I think it would be great if we could get the numbers for each community but have no idea if it is even possible, I have only seen them once and it was about 10 years ago in a Navy Times article. I am curious myself what the numbers are nowadays. That source of info already exists for the USMC with their excellent FY XX USMC Aviation Plan that breaks down the current aircraft numbers and even their crystal ball as to what they see happening in the future, giving everyone a very good idea of just what percent get _____.
There are 3,667 Marine Aviators, of these 1,388 fly f/w aircraft and 2279 fly r/t aircraft.
37.8% of marine Aviators fly fixed-wing aircraft and the remaining 62.2% fly rotary / tiltrotor aircaft.
I'm sure these are a little off due to Marines no longer flying still being counted with their former airframe. Also, I realize that the needs of the Marine Corps at a given time will ultimately dictate who and how many from a given class will go into each respective pipeline
Fixed:
10.06% - Harriers
15.38% - Hornets
2.23% - Prowlers
10.14% - Hercules
Rotary:
Osprey - 6.65%
Phrog - 16.58%
UH-1 - 8.37%
CH-53 - 15.76%
AH-1 - 14.78%