how competitive are schools in the uk,Ireland and Canada

<p>I am curious how ultra competitive schools (universities or colleges for Canada's sake)are in the United Kingdom (GB,Wales,Scotland,Northern Ireland) , the republic of Ireland and Canada, I am an average student and I would like to know the competition levels </p>

<p>also what is the situation for study and work visa's in the places listed above?</p>

<p>Are you talking about the admission or inside the actual school?</p>