@1writer this 3 page thread may be of particular interest to you for obvious reasons. Getting back to the original discussion now.
Just to be clear, a freelance writer is, as per dictionary definition;
... a person who works as a writer selling work or services by the hour, day, job, etc., rather than working on a regular salary basis for one employer.While "freelancers" who work with a writing company do have variable incomes and work schedules , the mere fact that the writer applied to work for the company, submitted qualifying documents, took a qualifying exam, then waited to find out if he could work for the company or not (approval to start taking orders), when he is contacted by QAD for revisions and his pay can be deducted for lateness or other violations, then, he ceases to be a freelancer. He is instead a contractual / per project employee, having been hired to service the company clients on an individual basis of the writers choosing.
The fact also that the writer is then subject to the company's code of conduct for writers negates his independent / freelancer status. He does not work for himself since he is engaged in a profit sharing scheme per order / client with the company.
As for who is better to hire, there isn't much difference in terms of work results. If a relevantly educated writer, rather than an experienced but irrelevantly educated writer, takes your paper at the company, then you get a proper paper written for you.
Clients never know what sort of writer will pick up their order at a company until he receives the paper. He can come to an educated and confident hiring decision with a freelancer based on the interview process.
It must also be said though that the client can ask for company writer credential presentation once a writer accepts/ takes the assignment from the server. The same can also be done or requested if a writer has been referred to the new client by a previous client.
However, paper writing should never be entrusted to the confidence level of an irrelevantly educated freelancer or his (referred) cohorts when it comes to their (Iack of proper or questionable) completed university education credentials. They can say anything to get the job.
A writing company will hire a writer to work with them based on a transcript of academic completion for a specific field along with employee applicant test scores. They often limit the writer to that field (at first). Not all companies function based on a writer field limitation way but there are those that limit their writers work field only to their relevant educational field regardless of work years with them.
A company that lets writers take orders beyond their university educational scope will produce problem papers. Potential clients should ask about that and be sure that only relevantly educated writers will see the order to limit revision problems.
Learning on the job is not the same as being properly educated in relation to the subject for writing regardless of years of writing experience or number of papers / number of pages written on certain topics. The extremely long argument about that in this thread is proof of that.
The opinions are that of the author's alone based on an individual capacity. Opinions are provided "as is" and are not error-free.