Since there is no agreed objective or subjective standard against which to measure 'best', why don't we agree to never use the term 'best trained' or 'best' pilots?
There is no one best way to train or fly or do anything. If there was, it would be the only way.
It took me a long time, but I finally learned-
there is no perfect helicopter design
there is no perfect manufacturer
there is no perfect operator
there is no perfect maintenacne organization
there is no perfect certification agency
there is no perfect licencing authority
if there was, they would be the only one....