It seemed interesting to me - until I spot-checked his data.
Then suddenly it looks like he is a jerk who cherry-picked white cities as his examples of "top-rated cities."
You can get ot various indexes from the links in this article (yeah, I know Wiki is not, in itself, taken as an authorative reference., It's a starting point)
http://en.wikipedia.org/wiki/World%27s_most_livable_cities
Including, fairly typically, this list:
http://www.post-gazette.com/pg/07116/781162-53.stm
2007 Places rated list
1) Pittsburgh ! ! !
2) San Francisco
3) Seattle
4) Portland
5) Phildelphia
6) Rochester, NY
7) Washington
San Jose
9) Boston
10) Madison
So. yeah, Portland and Seattle are highly rated. But so are San Francisco, Phildelphia and Washington DC and they are not very white
Mick