Make up? It's actually rather easy to google this info(which you can).
There has been a report consistently published every year on this subject. The current one, ranked for the summary of last year, should be released shortly, but The Economist Intelligence Unit's Index of Indexes ranking, which also includes safest places to live(which we rank No. 8 in the world, and No. 1 for North America), has us as the best overall city to live across the major index categories.
Zurich and Geneva are not ranking cities, but the rest you mentioned are, but in the Most Livable Cities portion of the Index. Where Toronto currently ranks No. 4 behind Vancouver, because of their score on the weather quality portion of the livability aspect. It's kind of neat though that 3 of the Top 5 cities are Canadian(us, Vancity and Calgary), and Australia and Canada collectively hold 7 of the Top 10 spots in the livability index ranking.