Well then what's the point of developing a power suit to put a human in? Drone aircraft are also a different animal. The only difference is there's no human in there flying it. Everything else about it is the same with a regular aircraft. With power armor or mech... that's complicated and a lot of moving parts all working at once. That's going to be an expensive piece of hardware... that will be destroyed by a cheaper tank. That's what I'm talking about practical. There's nothing special that will give it an edge on the battlefield. It's just different not better.I feel like I have to point out that the drone vs crew/operator argument can be applied to anything. Why have pilots sit in a plane enduring high Gs and risking his life when he can be sitting safely behind a monitor with a playstation controller? Why have a tank crew when you can just have tank drones? Etc.
Personally, I think "Robot Wars" are a longer way off than "Power Armor" for a variety of reasons. Of course, a Terminator would be more effective than a Spartan, but I think the Spartan is more achievable in practice (minus the energy shield).