What country in the World would you most rather live in, and why?

There could be many factors that make a country desirable as a home in your estimation. It might be due to it’s standard of living, amenities, political status, health care, climate and environment, scientific achievements or culture and arts. If you could choose one country to live in without sacrificing your own citizenship in your present homeland, if your homeland is not your first choice, which one would it be, and why?