I need help in deciding on a Honeymoon Cruise !!!!?

[cieraf]

My husband and I are taking a Honeymoon this spring and I am unsure as to which Cruise Line would be best .. I have talked with the a travel agent and they have said diff rent things about each cruise line.
THE FIRST IS ROYAL CARRI BEAN CRUISE LINE GOING TO OCHOS RIOS.GRAND CAYMAN
THE SECOND IS CELEBRITY X CRUISES. SAME DESTINATION BUT ADD ST MAARTEN
Has Anyone been on either cruise lines and which one is better for a young HIP couple Thanks!