Best Country to Retire

Bermuda, Cayman Islands, British Virgin Islands, Dominican Republic, Cuba, Islands off Venezuala and Columbia like San Andres, Costa Rica, Belize, England, France, Belgium, Bulgaria, Italy Spain, Canada, Greece or Netherlands
which would be best to go to for a man in his early 20s to go to school?
what about someone in their late 20’s that wants to go to a nice place and get a job and live there?
What about people looking to retire?
Also add New Zealand and Australia and maybe another nice place in Europe
but definately not Africa or Asia

New Zealand or if not Sweden