Sounds like the best thing for you to do is go area by area. Puerto Morelos, Playa del Carmen, Playacar, Puerto Aventuras, etc.... see if you like these communities and narrow down your resorts from there.
The Royal was an option for me until I found out it was Adults Only. My MOH is going to bring her daughter with her, so it's important I have family friendly. I think the Sandos Playacar has a beautiful beach wedding setup, it kept pulling me back. A friend of mine is getting married at Grand Sunset Princess resort, which looks awesome. I have previously stayed in Puerto Aventuras and LOVE the area, so I chose a resort right next door to where I have already been. I'm not sure it if is fantastic that we have SO MANY amazing resorts to choose from, or if it's just a headache! It took me 5 months to choose. Good luck and let us know if you need any help.