For our honeymoon, my wife and I went to Secrets Maroma Beach in Rivera Maya, Mexico. It was amazing. Adults only resort with 7-8 sit down restaurants, top shelf liquor, and every amenity you could ask for. Would definitely recommend this to you if you're looking for a relaxing vacation. It's a bit on the pricier side but if you're thinking Hawaii, then this might be a solid alternative. An added bonus, the spa was absolutely fantastic.
http://www.secretsresorts.com/maroma-beach-riviera-cancun
On the other hand, we've also been the Riu in Montego Bay, Jamaica which did not have top shelf liquor nor the number of quality restaurants. We had fun because we can have fun anywhere but compared to the Secrets, it was not very good. If you're going to do the all-inclusive go for the best.