We're into Day 2 of our mammoth task of selecting the definitive XV of the professional era for Connacht, Leinster, Munster and Ulster.

While the most recent World Cup did not go to plan, we would still accept that the professional era of rugby has been a tremendous success in Ireland - Grand Slams, Heineken Cups and significant Test victories.

All that success has been built on the four provinces.

The views of players, pundits and the public will all be canvassed to give you the definitive selection. 

Those of you who have already voted for the Leinster back three (it's not too late) will be aware of criteria, but for the rest here is our defence (explanation). 

Should selection be based on achievements with a respective province in terms of caps, points or trophies won or should it simply be who was the best player to wear the jersey? 

For example, there is no doubt that peak Christian Cullen was the best player to wear the Munster, or any other, 15 jersey but selecting him in a best Munster XV seems ridiculous.

This is, though, a fantasy exercise, so the criteria will be peak performance during a player's time with their given province unless another candidate for the spot's longevity and/or achievements make them impossible to ignore. 

Clear? No? Good, let the games begin.

Leinster centres

After the controversy of the back three selection yesterday the majority of the rest of the backline is made up of a lot of shoo-ins.

With the greatest of respect to Robbie Henshaw and Garry Ringrose, Brian O'Driscoll and Gordon D’arcy are racing certainties in the centre. O’Driscoll is Ireland's greatest ever player and one of the finest centres to ever play the game, case closed.  

If our goal was to generate controversy it could be argued that the finest rugby of Felipe Contepomi’s career came playing at 12 for Argentina. At their very best who would you select at 12 for one must win game – D’arcy or Contepomi?

I would actually go for the Argentinian but his time in the position at Leinster was too fleeting to usurp D’arcy. I don’t think there’s any point in pushing the boat out beyond two candidates for each position in midfield but just in case we’ll give you a Contepomi option at 12.

RTÉ selection:

13. Brian O’Driscoll, 12. Gordon D’arcy. 

But, this is just my own opinion. Please vote above for your own Leinster full-back and wings, or get in touch at teamselection@rte.ie, if you want to make a more considered contribution. We will be discussing these teams at length across RTÉ platforms in the coming weeks.