I am going to withdraw gracefully from this one. Parting shot:
Assuming the everyone meets a minimum standard of fitness as laid down by the service. I'd rather be in an Air Force where the common attributes amongst the aircrew are excellent flying skills - built on the basis of a first class flying training system - that nourishes our traditional characteristics of flexibility, innovation, self-reliance, cunning and wit. I'm happy to live with the demographic variation of physiques found amongst such a group.
What I don't want to be part of is an organization where the common characteristics are anchored in physical prowess, with the attendant demographic variation being in all the cerebral attributes that make us the Royal Air Force and not the US Marine Corps.
Must go - time for my body pump class.