Riu Palace in Riviera Maya-Cancun-Crazy awesome bartenders and really good food at the resturants you make reservations at, the buffet is marginal. Great beach and the ground floor rooms rock. Staff has a lot of activities for some fun during the day(ping-pong, water volleyball, scuba training) Wet bar in the rooms are insane, they have four Bottles hanging on the wall(vodka, Rum, Tequila-DUH and I don't remember the 4th) and you can use them up and have them refilled every 10 minutes if you want.
NOW Saphire in Riviera Maya-Cancun-Really cool place and I wish we just stayed on the resort instead of the excursions. Awesome food everywhere we went on resort, only filled wet bar once a day so I relied on the bars at the resort a lot but they had great service. Staff was great as were the beaches. Only 20 minutes from Airport.
Both can be booked rather easy thru Apple Vacations. No, I don't work for them just very happy with their service.