I'm in Ireland and pregnant. Had my first in the UK. If I had the choice I'd definitely have this one in the UK. Only exception maybe if you'd be living in Dublin.
I know that there's no way of knowing how this labour will go but I know that there's no chance even to start with getting the labour I would like even if all goes well. No birthing pools is my main concern, followed by much more consultant led and I don't even want to spend 1 night in hospital, but will quite possibly be in for 3 night even with a straight forward birth as there are no community midwives in my area.
It does depend on which county you're in- there are some community midwives, a birthing pool in Dublin, and I believe a nice midwife led unit in Cavan if it manages to stay open.
Saw a lovely midwife for my last appointment who had worked in London previously. She was in no way negative about the Irish healthcare system or unprofessional, but she did make it clear that the provision in Ireland for choices for birth are very very lacking in comparison to the UK.
Having said that, I know people who've had terrible experiences in the UK, and good experiences in Ireland.
Will it even be practical to move over just in time for the birth, or are you flexible that you'd be moving permanently from around 36 weeks?
You could just come by ferry shortly after birth, might be a long journey with lot and lots of stops for a new born.