I love the Irish immensely. They can be ultra competitive, especially in the rugby, but considering how the English have treated them through the years, that's completely understandable.
Whenever I've been there it's been an absolute ball, with some of the friendliest people on the planet. Must do the West coast tour some time.
Just read 'McCarthy's Bar' by Pete McCarthy and 'Round Ireland with a Fridge' by Tony Hawks to understand a little about Irish generosity and idiosyncracy.
Hate the IRA though. Those cnts killed Robert Davies from the Bont in Lichfield in cold blood. He was a school friend.