Wow, this list could go on and on and on and on just with friends I know. So, in order to be fair to all the amazing people in my life, I'll pick one of my favorite authors: Elisabeth Elliot.
This woman is AMAZING. She spent over a year with her toddler daughter living among the tribe of people that murdered her husband (and 3 other missionaries). She was widowed twice. And she's a no nonsense, committed, pure, passionate woman after God's heart. In most ways, I'm nothing like her. But I really wish I was.