According to a study of all the major cities in the world, Portland ranks No. 42 with its quality of life. Mercer's Quality of Living Ranking surveys the 215 cities and ranks them on a point-scoring index. Vienna scored the highest and Baghdad was the worst-scoring city of those scored. Mercer compiles the information for companies who must place workers in various parts of the world. View the survey in its entirety at www.mercer.com/qualityofliving.