Its a long journey alright used to be picturesqe going through the mountains years ago, but I dont remember much in the way of 'major roads'. You could go down the coast road towards Chester too but that would be going around the long way (distance wise anyway). Either way its a long drive, would you not go on the train British trains are quite comfortable (compared to Iarnrod Eireann anyway)?
SOrry gonna go with Helen on this one!
The old story that "forwards win matches and backs by how much" I think is outdated..(Toulose have a better pack than Munster) and the new story in my opinion makes more sense : "tries win matches and leinster backs by how many to spare!"
It is also decent road to the far side of Arklow on way to Rosslare from dublin so it is the much better run.