“What would you rank me on a scale of one to ten?”
You don't need a number.
The idea of being “ranked” as a friend is disgusting. Even if they give you a “one hundred” out of ten, the idea is still wrong. You are perfect. You are amazing, and I will stick with you thick and thin and cheese stuffed. Do you really need your friends to give you a number? Do you really want to know what they think of you, or are you asking because you need someone to boost your self esteem? Please, think about that.