Hello and Congratulations!
Just to let you know; We have arranged many weddings at Baraza, Breezes and The Palms, plus loads of other smaller properties as well. To date we have never had any negative feedback for weddings at any of these properties. Baraza, Breezes and The Palms are all next door to each other and can work very well, as your guests can choose to stay at any of the three depending on their budget and preferences.
Arguably other options do offer more flexibility and depending on your plans it is possible to book entire resorts for your party alone, however a we would always recommend either Breezes or Baraza to anyone considering getting married on Zanzibar.
One bit of advise - book early! At Baraza you can't get married everyday and Baraza don't allow more than a couple a week unlike other large resorts that might have one in the morning and one in the afternoon.
I hope this helps. Please let me know if you have further questions.