You can go to a school with poor board scores and a dismal US News ranking and still end up with a top residency, it is all up to you. In reality, the school reputation will only get so far, you will have to prove yourself eventually. I would recommend that you don't exclude scores based on their scores (we ask them not to do this when they look at our applications, right?). You might miss the opportunity to go to the school that will really make YOU shine so that eventually you get that great residency.