Which of these places would you go back to if visited: Cozumel, Cancun, Playa del Carmen, Isla del Mujeras?

I am thinking about taking a trip this year and am trying to decide between these four places. I know I can get to any of them from the other but wanted to know what people thought was the best place to stay for say a 5 day vacation. I like a more quiet place but also somewhere i can have fun at night. Thanks!