Irish: Sexy!
That thick Irish accent is the sexiest accent around, beating out even the French. Wait, a french accent was considered sexy at some point? Anyhow, I'd like to add that I can't think of the last time I've seen an unattractive Irelander; all that red hair, pale skin, rowdy disposition, and love of the drink usually add up to a hot time after the bar anyhow; the accent is just a plus.