before there is more delving into any jingoistic wankfests about boeing or airbus, lets get one thing straight.. all aircraft from all manufacturers undergo certain revisions after entering service, due to the operational wear and tear and in service life cycles on an aircraft as a structure.
both aircraft types are certified under each others aviation administrations as are many other aircraft from different manufacturers around the world.
now if anyone wants to discuss control systems go ahead but be clear about what is a control system and what is a structure.