That analysis has some problems. I think they are doing simple rankings on crime, when if they adjusted for the proportional crime rates many of these Southern cities would be deemed unlivable. States like Arkansas, Missouri, Alabama, Mississippi and Tennesse have 2.5-3x the crime that we have in Connecticut.
The school systems in many of these states are simply terrible, and USN&WR understates the problems that many of these southern school systems have chronically low teacher pay leading to difficulty attracting quality teachers leading to huge percentages of teachers needing waivers to teach. I believe that almost half the teachers in the state of Arizona are currently teaching on waivers because they do not meet the basic qualifications to be a teacher in the state. I don't know why anyone would be a teacher down south, because one comment acknowledging someone's two fathers could land a teacher in jail under the "Don't Say Gay" bills popping up in the South.
I also don't know how 20% of the Quality of Life ranking can be based on healthcare availability when the healthcare outcomes in a lot of these states are not much better than third world countries' health outcomes.
I am fine with a Desirability Index, but why is that given almost the same weight (17.5%) as a Job Market index (20%)?
Southern states have low taxes. They are low for several reasons that actually make these metros less appealing, not more.