Comparison between many different countries

Ranked regions of the world to live:

1) Rich countries in Western Europe. Canada

2) US.

3) Japan, Korea, China, etc. Depends a lot.

4) Arabic Gulf depending on who you are, LatAm depending on who you are, Eastern Europe probably the best.

4.1) Vietnam & S.E. Asia could be better than all of the above.

4.2) LatAm is normally worse than Arabic Gulf.

5) Poor countries in Africa. Sub-Saharan Africa.

I am interested in researching about other countries.