You have 3 countries fighting with German, US, Russian and British a/c, and your getting all technical about how many Seafires fought in WW2? I dont get it.
It saw action with the East Indies Fleet, British Pacific Fleet, 2nd TAF in Normandy, Norway and the Med.
How many were used operationally? well certainly comparable to the F4U-1C, or the Ta-152, N1K-2, or the Me 262, or the Me 163, or the Arado 234. < All of which are in the game. If your counting.
Most of the RN Fleet Carriers operated the type at some point in the war. Illustrious, Indomitable, Indefatigable, Implacable, I wont list them all. Many of the smaller RN Carriers also used the type. Yes, they also used the Corsair, F6F, F4F in some #s.
...Btw the Seafire IIc (the one in AH) only ran at +16 lbs boost, it was a version derived from the Spitfire Vc. There is no "+12 lbs boost" Seafire IIc for HTC to "go back too".
Seems your gripe is really about the CVs being multi-nation "generic" and the fact you dont like Spitfires. Thats fine, fair enough. Thats the real issue you should be addressing. Maybe some players dont like the fact that you can always launch rocket and bomb carrying Jabo F6Fs and F4Us from CVs and never take IJN types?
I think you do have a point in regards to the plane set on the CVs, I would like to see nation specific CVs, but thats not likely to happen untill TOD comes out.