When I ask someone to "please mentor me," it isn't usually in those words, actually. Instead, I evaluate the fruit in someone's life in an area in which I'd like to excel. For example, am I feeling prompted to grow in patience as a mother or learn how to better serve my marriage? Is there a facet of my professional life in which I'd like to better lead? Do I see a contagious hunger in someone to grow spiritually that I'd like to implement into my own life? When the Lord pours living water into us, He intends for us to pour it right back out and refresh others; otherwise, it become stagnant water. So, when I'm asked by someone to mentor her, I inquire, "What in my life do you see that you'd like to work on?"
The chances of finding someone who has mastered all the aforementioned aspects is unlikely. And that's okay because the chances of God prompting you to work on all these areas of life at one time is also unlikely. But if He does, and if you find a mentor who encompasses all these virtues, please call me, and then mentor me next!