We are a couple in our early 30's who have never been to Mexico before. I am trying to choose between Cancun and Playa Del Carmen to stay in. From what I have read PDC seems to have most the trump cards in that its closer to a lot of attractions like Coba and Tulum, Cozumel is a short distance and the town has more of a Mexican feel. Also its not far off Cancun in terms of nightlife.
However I would appreciate your thoughts on this - what does Cancun have which trumps PDC?