I believe that I am the best candidate for this position because of my extensive customer service and management experience and my ability to adapt to any situation. I have a passion for success and goal oriented demeanor that would push me to accomplish my set tasks. Also, with my personable character I can work well and communicate with others to contribute to team efforts. In all that I do I would strive to advance the company, and I feel that my previous work experience proves that.
However you choose to answer the question, make sure that you clearly highlight your best and most relevant skills. Aim to convince the interviewer that you are in fact the best candidate.