They are different.
LC is boat diving, with 2 wall dives in the morning and a reef dive in the afternoon. Walls are awesome and vertical. Night dive once a week if I remember correctly. Food was good at the resort, nothing else to do or see on the island.
Curacao is boat dives if you want and unlimited shore dives. Resorts similar to LCBR would be Habitat and Sunset, but neither has as good food. Curacao is spread out and a rental car is a good idea if you want to explore, shop and shore dive outside of the resort.
If you want to do a lot of dives, I'd recommend Curacao. The house reefs at Habitat and Sunset make it easy to do 4-5 dives a day. If you want dramatic walls, LC wins hands down.