If you are talking about the most intimate provider I don't see how anyone could have an answer that would be accurate for all.  True intimacy is achieved as people become comfortable with each other and gain a level of trust. It's not something you can give a number score to or rate. It grows out of a connection between two people.  

I feel very fortunate to have found this sort of connection a few times over the years with a few very special and now retired ladies.  I can tell you that the intimacy did not happen on the first appointment.  Obviously the sex was great or I wouldn't have gone back for more but true intimacy is not something that every client will share with every lady. Be thankful when it happens because it means that both parties are able to think beyond the envelope and let themselves truly enjoy each others company.