Antigua and St Lucia

Currently planning our honeymoon for June 2025. Have been torn between Antigua and St Lucia and have a done a lot of research on both. I have found flights from Antigua to St Lucia with InterCaribbean Airways for around $250 and am considering flying to Antigua then to St Lucia then back home from there. The idea is to have about 3 days on the beach at Antigua at Keyonna beach resort then have 3 days around the Pitons in St Lucia at Stonefield resort. Does anyone have any insight to whether or not this is a good plan? Or insight on these resorts? Any advice helps thanks!