In a ranking of 221 cities globally Mercer company based in New York rated Vienna number one. The company used 39 factors in coming up with the ratings.
Although many of the top cities are in Europe, Canada has three cities in the top twenty. Vancouver manages to be in the top ten at number five. Ottawa is number 14 and Toronto 15. Auckland in New Zealand is third. There are several Australian cities in the top twenty as well.
The United States did not have even one city in the top twenty but Honolulu made number 29 and San Francisico 30. The Big Apple New York made 47. The worst rating went to Baghdad. If you have to go to Baghdad probably staying at the humongous American embassy would be a good place.
For much more see the entire article here. Photos of the top 20 cities are here.