You are being a little to simplistc here when it comes to the realites of modern aerial combat. Aircraft with live pilots are already to identify and engage targets they are not able to see with the naked eye. I know a human pilot isn't going to be able to engage in the type of flying fighter drones are theoretically going to be able to pull off. Aside from that, I just think a human pilot will be much better able to make those important, judgment calls when over a target area or engaged in an air-to-air fight. Far better than a computer could, and far better than some guy flying the thing via remote control.