The definition of the best writing service will vary per student. There is no single way to assess any essay company nor freelancer. A student can only have a pre and post work assessment of the service or writer. The first assessment will be based, as Cite mentioned, on the needs of the student and the second assessment will depend upon the applicability of the work provided and the need for revisions. It is never about the lowest price per page, turn around time, or ability of the writer to write based on multiple topics. The educational background, as proven by the writer is one of the major considerations in this case, along with his ability to follow writing instructions and provide the relevant paper. Beyond that will be the personal considerations of the student that he will attach to his personal satisfaction. Add everything up and the total will be the sum of the best writing service a student can find.
The opinions are that of the author's alone based on an individual capacity. Opinions are provided "as is" and are not error-free.