RRAMJET
You're comparing the long time aviation flyers with the likes of me or the Military Pilots with Civy Pilots. You cant compare those.
Take like for like. Compare a UK Navy Pilot to a US Navy Pilot with the same length of experience, aganin dont pick the crappest one u know. Take a bunch of Pilots and then compare them.
Alternatively, take someone in BA and compare to someone in Delta with the same time or experience.
This is how you will extract the nitty gritty details of who knows what and how developed their flying skills are.
BTW, which did u find more intensive )in knowledge and flight training), RAF or USAF?