You are basing your opinion just off of statistics, since you weren't even living here. A mayor is more than just crime statistics. They are the leadership, public face of a city, they choose the police commissioner in Philly, and many other things related to quality of life in a city. What and how we experience life in a city is important. You can look around your neighborhood and see if businesses are booming, more are starting up or they are closing. You can gauge how safe you feel, how many bums are on the street, etc. These are quality of life issues, and of course they are subjective, but they matter, and these are the mayor's legacy. Most people when they decide to move or stay in a city, they are considering quality of life issues, not statistics of what was going on in the world or other cities in the nation.