Brushless vs Stepper vs Brushed Rotary Actuator

[rayclag]

I am working on developing a rotary actuator for an on-engine device. The actuator has to live in a harsh environment (temperatures of up to 150C and vibration level up to 25G's). What are the pro's and cons of the basic motor types Stepper, Brushless, and Brushed DC for operation in such an environment? Are there any other motors that should be considered as a basis for design?

 

[EdDanzer]

This should be asked on the Electric motors & controls engineering forum.