Drinking culture ( having lived in Dublin for 2 years at one stage) .
The Irish drink more, but generally behave better with it than the English.
In Ireland ( my experience)
No such thing as pub crawls. You decide on a pub and stay there. You then don't lose valuable drinking time walking between pubs.
Because you stop in one pub, you can get a table. There aren't people stood about drinking in Irish pubs. Sitting at the bar is a normal thing though.
When you go out you take a coat just in case. Shivering young people barely dressed isn't the norm on an Irish night out. Because you go to one bar/pub , you can hang your coat up there.
Table service. Every pub. Lounge girls/boys taking your order so you don't have to queue at the bar. This also encourages the ' one pub a night' mentality.
Professional, uniformed, bar staff in nearly all pubs, local and city centre. Being a bar tender is a well paid , respected occupation in Ireland.
Real low level of anti social behaviour arising from drinking. Despite the amount of time the Irish spend in the pubs, there is surprisingly little anti social drunkenness.
In general, the drinking culture is more friendly..more about the atmosphere and friendliness then ' lets get hammered '.
For me , it explains the difference in atmosphere surrounding St Patricks day, and why we have jumped on board with it in this country.
For a lot of people, and to massively generalise, Paddys day = having a laugh in a general party atmosphere ..St Georges day = Gammon faced EDL members being racist and getting aggressive by 2.00pm in the afternoon .