The 2007 Airline Quality Rating, an independent performance analysis of all domestic airlines published since 1991, is interesting reading. It provides a little objective insight into my complaints about United. The data show that United Airlines tied for the highest level of complaints per 100,000 passengers, and that they have fallen from being the best carrier in 2002 to ranking number 13 out of 18 in 2006. Moreover, the trend is firmly downwards.