Looking to plan a 5 night vacation in USA/Mexico/Latin America/Caribbean during march or april using marriott points. have about 160K points and am a gold elite. i have a 3 yr old daughter so we prefer great pool or beach resorts and access to babysitters. Last year we did RC Cancun using points and would be happy to go back but looking for options. any recommendations on which marriott is the best? are there any where we can get complimentary upgrades as a gold elite?