General Grievous - He's got a good point.

He certainly does have a good point… droids are unfeeling, programmed objects (but for some reason they appear to feel pain and other various emotions…………like srsly why pain of all things they're fucking robots) that don't do anything more than their programing. If you want them to attack something they'll just walk towards it shootin. If they had used perhaps… REAL LIVING PEOPLE who value their lives and can't have their A.I exploited (maybe the droids A.I makes them take x seconds before targeting something else, that's exploitable) are much better, and don't require valuable resources to make…. They arent going to just walk towards the enemy and die, they're going to do whatever they can to make sure they are as safe as possible before doing so ;-;

Basically, the Droids were programmed like living beings… but only in the ways that hinder them. They lack the actual advantages of living beings.