10. Master Chief
Who'd Appreciate It?: Cortana
Cortana made her decision, and Cortana is never wrong. Usually. Unless she's rampant. We may never actually know what Chief looks like beneath the bulky armor, but we have a pretty good idea of what we're looking at. Did you see Forward Unto Dawn? Like what you see from the older soldiers? Yeah, that's probably what Chief is hiding beneath all that protection.