200 : Attraction First or Second?

The first basis of a relationship is attraction?
Agree or Disagree?

A friend of mine talked to me about her problems recently.
A friend of hers started showing signs of wanting to get together with her, they have been close friends for almost a year and she has never thought of him in a relationship way. He is a really nice guy, someone that even i know will take care of her but she has no physical attraction towards him. If he really pop the question to her, she really doesn't know what to do.

Would you say yes or no to him if you were her?
Knowing you have no attraction towards him and the risk of jeopardizing the close friend relationship is just right there if it doesn't work out.

A few people said that attraction is not everything but isn't it important to spark the relationship?
I really hope she can find the right choice..

Love,
Leo