Greece vs Ireland

Between the two, Greece is cheaper — $1,468/mo vs $2,616/mo. Greece is cheaper than 26 of 41 European countries; Ireland is pricier than 35 of 41 European countries.

Between the two, Ireland is safer — 2.7/5 vs 1.8/5. Greece is less safe than 39 of 41 European countries; Ireland is less safe than 25 of 41 European countries.

Between the two, Greece scores higher on mobility — 2.8/5 vs 2.7/5. Greece is harder to get around than 24 of 41 European countries; Ireland is harder to get around than 29 of 41 European countries.

Between the two, Ireland scores higher on culture — 3.9/5 vs 3.5/5. Greece is richer in culture than 24 of 41 European countries; Ireland is richer in culture than 34 of 41 European countries.

Greece's passport reaches 105 destinations visa-free to Ireland's 104 — Greece opens more doors without a visa. Passport strength shifts over years of naturalisation, not months of planning, so it's a long-horizon footnote — not scored in the tally.

Between the two, Greece is better connected — 77M passengers/yr vs 42M passengers/yr. Greece is busier than 62 of 87 countries worldwide; Ireland is busier than 53 of 87 countries worldwide. Greece sees ~7 air passengers per resident a year; Ireland sees ~9 air passengers per resident a year — a derived figure, not itself ranked.

Greece runs -6°C to 37°C for most people; Ireland runs -13°C to 23°C for most people. Alexandroupoli runs colder, at -14°C. Depends on you — which range fits your tolerance is the real question here, not a score.