Negril vs. Playa Del Carmen?

My soon-to-be wife and I are looking for a honeymoon ins October. We were interested in Couples Swept Away in Negril, Jamaica until we went to see a travel agent. She showed us some amazing resorts in Playa Del Carmen, Mexico. Now we are unsure about our honeymoon. There are great deals right now on trips to Mexico due to the economy and the swine flu media frenzy. My question is, are we better to go to the glamorous, big, fancy resorts in Playa Del Carmen or go the the modest, quiet resort in Negril. We will be spending ten days and mostly hang out on the beach and do a few activities. We are worried about being underwhelmed at CSA. We could get a much nicer room in PDC however I have heard that Negril is nicer and more romantic. Any opinion is welcome, we are really stuck and want to make the right choice. Does the food in Negril compare to PDC? Also we have been to Cancun before and want to stay away from the Spring break vacationers , from what I have heard PDC is nothing like Cancun. We would also like to have the option to see shows at night-time. I have also heard that the "boutique" hotels in PDC require that you get up early to secure a good spot on the beach (under a Pallapa) and are more complicated when it comes to dinner reservations. What do you suggest? We definetly want to have the best time possible.