inside · among · in the midst of (doing sth) · during

Taro is the most famous of the three.

Nancy is the most beautiful of the four girls.

And I know you didn't do this just to win an election. And I know you didn't do it for me. You did it because you understand the enormity of the task that lies ahead. For even as we celebrate tonight, we know the challenges that tomorrow will bring are the greatest of our lifetime: two wars, a planet in peril, the worst financial crisis in a century.

Any one of us could do it.

January is the first month of the year.