I like Moses. I can relate a lot with him. God asks him to do this big thing, and Moses doesn't think he's qualified for it. But God tells him that He will be with him always. I just find that encouraging.
I also like Job. He was tried and tested and eventually crumbled and questioned God. God then put him in his place. "Answer me like a man!" Ha, it's great. I can also relate with that.
I also like Paul. He admits and realizes that he did horrible things before he really knew Christ, he considered himself "the worst of sinners", yet he strived to be more Christ-like and realized that because of his past wrongdoings, he showed how Christ can save even the worst of us.