Belfast's Big Two - Trophy dominance - Statistics chart

The rivals have been the two most successful clubs in Northern Irish football. They have won more league titles, Irish Cups, League Cups and County Antrim Shields than any other clubs. Linfield lead the way in all four tallies, with Glentoran coming second. Almost half of the 135 Irish Cup competitions to date have been won by one of the two clubs, with at least one of the clubs reaching the final in 88 of them, being victorious 64 times. The two clubs have met in 15 of those finals – making it the most common final. Linfield have won eight of the meetings to Glentoran's seven. The most recent meeting between the two clubs in the final occurred in 2006, when Linfield won 2–1 to lift the Cup for the 37th time. Together, the two clubs have also won over half of the League Cup competitions to date. Roughly two thirds of all Irish League titles have been won by one of the Big Two. Of the 114 league seasons completed to date, the title has been won by one of the two clubs on 74 occasions.

Reference 1: Linfield, Glentoran, Total, Competitions and Big Two win%.

Reference 2: League, Irish Cup, League Cup, Co. Antrim Shield and Total.

Source: http://en.wikipedia.org/wiki/Belfast%27s_Big_Two