I have a choice between 2 sensors, one outputs voltage 0.5-4.5v and one outputs current 4-20mA. The cable carrying the signal could reach upto 2 meters. Which output type would be better in this case?

Also not related to the above question, if a sensor has 4-20mA output, how does a MCU reads it, as far as I know MCU can read voltages easily. How can current be measured my MCU?