I have been to LC many, many times and always end up at LCBR for the following reasons:
Pirates Point only offers 2 dives a day, less food selection, most rustic of the 3,
SCC has always been more pricey when I have checked on group rates so in my mind they must be more upscale.
And, LCBR always wins for these reasons: the staff is VERY accommodating from the front desk to the chefs to the dive shop, DM's and captains. The food is wonderful and if you have a special request, you are accommodated, no questions asked. The food is served buffet style so you are not limited in quantity. I can request a certain room year after year and almost always get it. I do not touch any of my dive gear once it is on the boat. The dive staff takes care of it.
While some of this may be the same as SCC and PP, I just like LCBR better.
If you want to join a group trip, I have one going August 23-30, 2014. Message me for details.