Best Sandals Resort for Honeymoon

Hi! Looking for some help picking a destination for a honeymoon in August. We are looking at Sandals resorts in St Lucia, Grenada, and Barbados. Anyone stay at any of these resorts? Did you have a good experience?

Also, we are deciding what room level to book at these resorts. The Rondovals rooms are what we like with our own space and pool, but comes with a heavy price tag ($10,000!). Are these worth the money? Or should we sadly stick to a more basic (and budget friendly) room ($5,000).

Thanks for any help!!