I would prefer a native English-speaking American/British writer, with an MA/MSc or PhD degree, from an American or British university, that would charge me $20 per page for an English Language or English Literature piece of work. But, for another subject like History I would prefer an English speaking foreigner with a Masters or PhD degree in both English Language and the other subject (History), that would charge me $10 per page for a piece of work like a History essay.