People tend to be more interested in what "exotic" people have to say. So while the foreign and local teachers may be of the same level of competency the simple fact that the foreign teacher is foreign (thus more exotic) will cause people to take closer note of what they are teaching and thus will learn more.
It is the difference between local breeding and international wandering..
i definitely rather study a broad because I'm into women as for locally as long as there were girls to study with..
Depends on where do you study- and where do you WANT to go study.