What makes you stand out from the rest of the candidates?

If you are performing at your best, the competition will be worried about you, not the other way around. Tailor your answer. Learn as much as you can about them while performing appropriate research on yourself, what your core values are, how those align with theirs, and what you have to offer them. Explore what you brought to your previous teams, and how you'd that adapt to their teams. Speak confidently, make relaxed eye contact, and posture yourself with positive, engaging, and confident body language. If you believe it, they will too. From there, you should be able to construct an in-depth answer, where you'll fit their mold.

"Well, I learn fast and work fast. I have high attention to detail and a great deal of integrity. I hold myself accountable, take responsibility for my own actions, and am a clutch team player. I have solid leadership skills, and never quit, so I never fail. I am eager to learn, grow, and have a great attitude. Basically, I strive to be the kind of employee I'd want to hire."