EuroATC,
I have really no problems to understand all of you at GVA ACC! (Maybe, it's because I did some of my training in the US.)
How many Canadians are you there?
Keep up your good job, guys!
I have much more troubles in Spain to understand these guys overthere. It's not only the accent but also their poor transmission. Sometimes I feel that the controllers aren't that fluent in English. (Once we heard an ELT going off so I told the controller; he let me reapeat my message several times and at the end of all those attempts to tell him what happend he just replied with "Roger". Not very encouraging in case something "non-standard" happens.)
autobrakemedium,
US controllers do an outstanding job! They provide an excellent service even to a "small" VFR traffic and treat 'em like the "big-ones"! I haven't seen such a service here in Europe.