The Annual Sunday Times University Ranking for Ireland (yes, another university ranking system)
Top three rankings: Trinity College, Dublin (1); University College Dublin (2); University College, Cork (3).
Note the closeness of the rankings derived from the scoring system used: the point spread between TCD and UCD is merely 4 points, using this ranking scheme. This closeness of relative positioning, of course, does not map well onto the THES-QS ranking spread, which is considerably greater (to choose just one of the many ranking systems available). Again, the nature of the variables measured and the weightings applied to them to generate the overall composite ranking makes a huge difference to the outcomes generated, as has been argued here many times.