Although the metric system makes the most sence I am accustomed to inches so I prefer MOA/MOA but I dont think it would be hard to convert to MIL/MIL. I hate dots so the mil DOT would be my biggest hurdle since they are so popular
MOA seems to be the most understood if a person is accustomed to measurements in yards, feet and inches. MIL seems to be the most understood if a person is accustomed to measurements in meters and decimals.
How many hunters in America are accustomed with the metric system and associated estimates without too much thought?Unfortunately not many. Therefore, it's MOA for ease of instruction with the hunters in the second to last country to adopt the metric system.