Of those,the R-C Ft lauderdale by a country mile,it is better than the key Biscayne property.
We've stayed in both.

The rooms,especially the ocean view ones high up at fort lauderdale are beautifull and very modern versus the tired old fashioned offerings at key Biscayne.
It's also located in an area where theres a strip with a lot of life both at day and by night.

To be honest,I'd rather visit the W whilst staying at the R-C than the other way round.