I can't say I have a favorite, since I loved being "there", wherever I was. But my dream is to live near the water, so right now I'd say the SW, because of Dingle and Kenmare areas. But, hey, that's the cool thing about a small island....you are near water pretty much anywhere, right?
I met an older (than me) woman a couple of years ago at a conference, who had relocated from the Midlands (?) of Ireland to the Boston area. I told her about my dream to move to Ireland after I retire, and she looked at me as if I'd lost my mind and said "WHY???". Then she went on to complain about the weather. Well, I'm from MN...I'm used to all kinds of weather. So I don't get why that seemed like such a crazy idea??? Are there other things I should be warned about?