Simple question:
In your opinion where are you more to receive an
unacceptable or uncomfortable clearance on approach?
EGLL/EGKK/EGCC or
KJFK/KORD/KBOS
Easy. EGLL/EGKK/EGCC. And for the simple reason that I grew up, both personally and professionally, in the United States. KJFK/KORD/KBOS make sense to me. And I have fond memories of KDCA.
Everyone is more comfortable on home turf. Every country as its own aviation culture, notwithstanding ICAO. And almost everyone has to find some reason to look down on other people. These are, I think, three facts of life.