I don't think it makes a difference between Skype vs. in-person, as we've seen people get accepted via both methods. I think it depends more on what is convenient for you and what you are comfortable with doing. I have trouble using Skype myself, so I want to try and do an interview in person. Anyone planning on going to NY? I wouldn't mind flying to Oxford so that I can get a better look/feel of the place, but on such short notice, it's a bit expensive