Character movement

This is a logic and optimization question and not a programming one, im sorry if the questions is not in right place..

My questions is what is the best way to create a 3D third person character movement in Unity.. obiosuouly there is a lot of ways to do that but i care about optimization so much and when things come to optimizing code and logic i really suck at it. so if you know what is a great logic or best common way that people use to move a character please share! :D!

Is using a character controller helpful ?

Thanks