andrijander :
About the racism issue: it does exist. Not this a place to debate it so how about we focus on the issue at hand and we try to be constructive.
Oh, dear. Always a good sign of someone losing the argument, when they play the race-card. Sorry, that card does not wash any more.
Firstly, this cannot be racism as most Spanish are Caucasian. Or do you confuse racism with nationalism?
Secondly, this cannot be racism/nationalism as the contributors here have clearly explained that many European and world ATC centers are very good. This is merely an honest opinion of good controlling vs poor controlling, and nothing to do with any inherent bias or any 'isms'.
IMHO:
Good = Scandinavia, Benelux, Germanic, Eastern Europe (in general, but gets worse the further east one goes), Baltic, N America and surprisingly Italy (except they speak too fast).
Bad = France (wrong language), Spain (dubious instructions), Greece (can they replace their 1950s crystal radio sets?), N Africa ('nuff said), Turkey (try hard, but heavy accent), Eastern Med (ditto N Africa), Russia (heavy accent), and many RAF stations (slow).
It might be nice to have an exchange program across Europe, to homogenise standards. I would just love to see an AGP controller on LGW TWR freq for a month
Seriously, this would be the only way to demonstrate and cure the problems we have in the 'bad' locations.
.