How much emphasis do they (Eurocontrol) put on an applicant's english skills? I don't mean to be rude or in any way offensive, but a vast majority of the people writing in this forum (and other forums as well for that matter) seem to have questionable skills in english - and still seem to pass the tests well enough to earn a trainee spot at Eurocontrol.
You should be able to express yourself in normal conversation, accent is not important and I don't think grammar is evaluated at any stage. Once you're in, there is an English proficiency test... totally doable, and you get to practice.
Is there in fact an equal amount of trainees from all over Europe or is there a clear over-representation of trainees from english-speaking countries (England, Ireland, etc.)?
Equal amount, if anything there are too many Germans