Question special

One resource that I've found to be both entertaining and a great source of information about choosing a specialty is the "Undifferentiated Medical Student Podcast." Although it's no longer in production, there is a backlog of over 100 hours of interviews with doctors from dozens of different specialties. Here is one of the questions that the host asks during each of the episodes, and which I hope our experts might be able to weigh in on:
"If you were a 3rd year medical student, undecided on specialty with limited time remaining before residency applications were to be submitted, what do you think would be the fastest, highest-yield route to making the decision?"