The UN has a study out that ranks quality of living. It's in PDF form and called the Human Development Index. You can click on the section called Human Development Indicators for the full list. Here are the top fifteen quality of life countries according to the UN:
1. Norway
2. Sweden
3. Australia
4. Canada
5. Netherlands
6. Belgium
7. Iceland
8. US
9. Japan
10. Ireland
11. Switzerland
12. UK
13. Finland
14. Austria
15. Luxemberg