Is it better to go to an all-inclusive resort when going to Playa Del Carmen?

My future wife and I are going to Playa Del Carmen in early May for our honeymoon and I'm trying to gauge whether or not an all-inclusive resort will be a good fit for us. We'll be there for a week and one day we want to go deep sea fishing and another day we want to visit Mayan Ruins. Is the resort better? Or should we just find a hotel and plan our days and meals ourselves?