2 thumbs up for EDP..haha
at least putting all your eggs in one basket allows you to really focus on one place and getting to know the school, curriculum, type of students, etc. That way you can go to the interview and really convey that you've put thought into going there and you are sure you'll be a good fit.
I know, theoretically people are supposed to do tons of research for each school before each interview, but it doesn't seem like they do in practice...