That's interesting. I'd like to know more about this. My only 'Cayman' diving has been 2 dives on a cruise ship excursion out of Grand Cayman years ago, so I cannot compare except by what other people report. The impression I've gotten from Scuba Board posts over the years is that:
1.) Grand Cayman has really good diving (north & east; west is worse) & quite a lot for non-divers to do, it's a great (though expensive) compromise vacation when bringing non-divers, or when you want to do a more rounded trip with diving plus other stuff.
2.) Cayman Brac diving is supposed to be a good deal better.
3.) Little Cayman diving is supposed to be a little better than Brac.
Now you post this. Did you find the diving better at GC, or what it something else that drew you?
Choice of a dive destination and operator is personal. This is what is best for me.
I have been to LCBR twice, last, February 2014. I like LC very much, the walls are amazing, personally, I found the reef fish somewhat sparse. Reef Divers is a very good op, I would like more dives. The AI food service is also very good.
I have been to GC 10 times, including twice to Cobalt Coast/DiveTech and twice to my favorite, Compass Point/Ocean Frontiers. I like Cobalt Coast/DiveTech very much. AI food service is excellent though I would recommend a car and we ate out several nights. DiveTech AM dives are loosely limited to an hour, afternoon shore dives at the resort, Lighthouse Point, and Turtle Reef are excellent. The West Bay Express DPV dive from the resort to Lighthouse Point is a blast. The rebreather experience is both humbling and a lot of fun.
Compass Point/Ocean Frontiers is my favorite for several reasons. All the units have a full kitchen, I like making many of my meals, especially breakfast and lunch. There is a perfectly fine informal restaurant on the premises and several more within a short drive. For me, the overwhelmingly most important factor is the diving. Ocean Frontiers is probably the best operator I have used. Full valet, they take care of all gear including washing and drying your wetsuit overnight. The only equipment I took with me was my computer. Nitrox is on the boat, they analyze it in front of you before you leave the dock. Dives are not time limited, limited by your gas or NDL. They offer 4 dives/day, 5 including the night dives on Mon and Thurs, latter a UV dive. They have a great 3-tanker on Wed and a wall drift dive on Thurs. OF location give them easy access to North, East, and South sites, something regardless of weather and seas. See the website for a description:
Home The dive sites offer quite a bit of variety and I found a significantly greater number and diversity of reef fish over West or Northwest GC or LC. In my visits, I saw more sharks also.
All 3 trips I describe are excellent, I'm glad I've done them all. It doesn't surprise me that others have different favorites, for me its Compass Point/Ocean Frontiers.
Good diving, Craig