Full Board vs Half Board maldives

In my opinion, it is much better to go B&B then pay as you go for the rest. Sometimes you just want a main course or a simple meal so doing B&B only means it works out more cost effective and you don't feel obliged to eat loads because you've paid for it!!
We have been twice to Hilton Maldives resort and made the mistake the first time of booking a Half Board deal. There are three standard options in the Maldives
B&B - Bed And Breakfast Only.
half board - Bed, Breakfast, and Dinner.
full board - Bed, Breakfast, Lunch, and Dinner.
my advice is B&B is the best to go for. That way, you can choose where you want to eat, as opposed to being tied down to the designated H/B F/B restaurants
With Half Board you can either eat in the main restaurant (which is buffet style with loads of choice) or take the set menu in the a la carte restaurant on the Water Villa island.
With HB you only get a credit towards the other restaurants such as the Sunset Grill and I'm not sure if you get any credit towards Ithaa (undersea).
there are too many wonderful places to eat to be restricted to Atoll and Vilu (Mandhoo island at the moment while the refurb is underway). not sure whether the saving you will make on going B&B will stack up against the costs of the meals once you get there but as Rex says, some nights you can have one starter between you and a main...the portions are so large that I defy anyone to eat 3 courses every night.
We have tried all the restaurants (Ithaa, koko grill ,wine bar, champagne and lobster, bar meals and private BBQ). They were all wonderul experiences and we have never had a bad meal

Depending on how busy it is when you go, you may want to book the Ithaa in advance? It's a fantastic experience and one not to miss.