I have flown in many Spanish speaking countries and Asian speaking countries and have controllers, with the respective accents, be very understandable and very professional.
But I don't want to start a "good" country and "bad" country conflict.
This thread has seemed to have fallen into the same old UK vs. US nonsense, so that is why I posted New York/London.
Sorry, did not mean to insult anyone.
And yes, even many very professional French controllers.