Let's keep this limited to people you actually know. ie. Don't name Gwen Stefani unless she's your cousin/sister/best friend etc.
When I actually stopped to think about it I realised my entire family is pretty damn awesome. It's a tough choice, but I'd have to say I admire my uncle the most. He was wrongly convicted of a crime but he handled that tough time incredibly well. I can learn a lot from him about how to handle hardships and not destroy myself from the inside.