Which is more valuable to an employer - a degree or a TEFL certificate?
A degree is valuable to employers for the obvious reason that you’ve studied to a degree level, but for many employers, it’s valuable because it means that you can get a work permit and teach legally at that particular school. As for the TEFL certificate, it’s valuable because it does at least show an employer that you’ve attended some kind of teacher training program and you’re not a complete novice. In a perfect world you would probably have both a degree and a TEFL certificate, but in Thailand there are still employers that do not require a degree and employers who don’t require a TEFL. Very rare though is the employer who would ask for neither.