As long as we can make a couple of days out of it then I don't mind France, Ireland or Edinburgh.
France for preference though, South for top preference, Biarritz if you're really pushing me.
Any Irish trip
Connacht (Galway) wonderfull city,great pubs
Leinster (Dublin) expensive but fun
Ulster (Belfast) never been but would love to go
Munster (Cork or Limerick) both very lively citys