You have to be a special talent to top this list and Brian O'Driscoll certainly fits the bill. Ireland's record cap-holder, former captain and Six Nations Grand Slam winner is surely the greatest sportsman ever produced by the island.
First, O'Driscoll's club record is jaw-dropping itself. Three Heineken Cups, three RaboDirect Pro12s (or various version of it), one Amlin European Challenge Cup—O'Driscoll's won every title up for grabs in Irish club rugby.
Then there are his performances for Ireland. His 26 Six Nations tries are a tournament record. His 130 caps are an Irish national record. He was shortlisted for the IRB Player of the Year award three times, narrowly missing out to other greats of the game in Keith Wood, Fabien Galthie and Richie McCaw.
Perhaps the only blemish on O'Driscoll's record is his failure to win a second Six Nations title. The 2009 victory was a Grand Slam, but O'Driscoll has been unable to break the Welsh dominance of the Championship in recent years.
O'Driscoll retires at the end of this season. With three matches remaining in the Six Nations 2014 and Ireland unbeaten, who would bet against O'Driscoll signing off with another title?