If possible, go on LinkedIn and do some research on the person who is already in a leadership position in the company that you're applying for. Looking at their professional experience and accomplishments, note down any themes and anything that is noteworthy or something to be proud of. Use that information to understand the leadership qualities that the company values.
If this isn't available, then the safer option would be to speak on your favorite position and give brief mention of the positive attributes of your supervisor or manager.