Not too long ago I have come across one article which I believe you can find interesting. Somebody will take a steaming dump all over it, however it answered some of my questions. 
http://xabigracia.com/how-to-create-an-outstanding-admission-essay-6/
http://obak.randomsynergy.com/2017/01/essays-writing-services-creating-any-job-easier-25/