I thought Beneteaus were orginally the preferred charter choice as they were the first to put a wheel
on smaller yachts. Most others followed years later.
And once a supplier like Beneteau
is producing volume they can of course produce down to a price
plus are best tooled up to to produce 'charter' versions as oppposed to 'owner' versions. These 'charter' versions have less frills and maximum sleep space.
The comment already made about buying
one range in one country not makes good sense about swopping parts but makes brochures multinational also. Certainly in Europe
charter companies move boats across differing nations to fill demand so one range is a logical set up.
Sorry, can't comment on Catalinas and whilst appreciating what cheap
sailing has done for our sport, not sure you can assume Bavaria
are built to the same standards as Beneteau
or Jenneau. I don't see them that way.
Finally also see Dufour
as a higher standard to the others, and maybe priced out of the charter market - if indeed they even produce 'charter' versions.