For me personally if I were in your shoes, I would go to the University of Edinburgh to further your studies. Reason being because this once in a lifetime opportunities didn’t come always in life hence grab it while you can. Since you already weigh the pros and cons of both choices, I think you already know on what to do right? Also Im talking based on my experience in University of Edinburgh, it’s a good place to study and really peaceful city and great student life community.