Most difficult exam? Weigh in here.

Google it and you will find many who opinion that the FBI exam is by far, the most difficult of the law enforcement exams to pass. Personally, I feel the USPIS Assessment Center was far more complex. They really challenge applicants with a very diverse assessment that requires you to multi-task under pressure. They structure the assessment so that while you are in the middle of one assessment, you are called away to interview an informant. Yes, a real live person that is reluctant to answer your questions and is generally uncooperative. Following the interview, you might feel a little frazzled but you have to regain your train of thought in order to resume the former task and complete within the deadline. Each assessment has a pretty tough deadline to meet. With the FBI, Phase 2, you will start your assessment with either the written portion or the interview portion and you will not be interrupted from either of those assessments. So, you can stay focussed on each task from beginning to end. For those of you who have taken more than one of the exams, what do you think was the most difficult?