During our last trip to Cancun, we stayed at IHG Presidente, RC Cancun and Hyatt Ziva. Here are the detailed reviews:
https://www.flyertalk.com/hotel-revi...in-cancun-3439
https://www.flyertalk.com/hotel-revi...n-classic-3442
https://www.flyertalk.com/hotel-revi...sort-read-3441

All family members have about the same experience. We like IHG Presidente the best and Hyatt Ziva the last. We paid for the upgrade at IHG and we were treated really well with oceanfront room and very quiet lounge with full staff. At RC, we also paid for the suite upgrade at a corner suite with great view. But it is RC and nothing was included. So we did not feel we were the "elite" there and everything is $$. Then Ziva is more for budget travelers. After one day, the food gets hard to eat. We tried many places and the food quality can't compare with either IHG or RC.

So if you like to stay at multiple hotels in one trip, it may be better to stay at budget type first, then better ones later.