The numbers are fiction based on you doing all the work. I cant tell you what model have the most miles on a charge, but I can tell that much of the difference between e-bike motors is what is not in the spec. IE, how they pedal without power, how they handle hitting the speed limit, how responsive they are, how they react to fast pedalling ect. To figure out what you like, go try a few different models and keep this in mind.