Aldora Divers in Cozumel uses smaller and fast six-pack boats - each one has an instructor as opposed to a divemaster... they try to match by skill level but will do buddy groups... can do with refresher... use 80 cu ft Al to 120 cu ft steelies, so it can be a longer dive... EAN - Nitrox no problem... they have their own villa (Villa Aldora, of course!) and transport to the best dive sites (two tank dive, first one south, next one where the slowpokes go first, surface interval at a beach venue with restrooms, restaurant, bar (ahem! soft drinks, etc.)

Sharm is nice, but very, very crowded. If you haven't seen twenty boats maneuvering to drop and recover sticks of 12 - 20 divers on a drift dive, you haven't seen anything. I am sure diver sushi is made frequently there (I spent a week on aliveaboard, one week land-based boat diving.) OTOH, Hilton has several properties (and I am sure there are others) at reasonable prices and points award use. (Getting to CAI on FF miles no problem - on to SSH, local air only. Those with a yen to do so can even do a day trip to AQJ and on to Petra via land.)

Fiji is a bit distant, but great diving... and FJ will take your AA, QF and BA miles, if not others.

I'll keep an eye on this thread - maybe we'll DO it! But in a few days, I am on my way to Indonesia - 10 days land based diving from Wakatobi, 7 days on Pelagian, to celebrate my 50th anniversary of scuba diving ^ . Indonesia will be my 29th country to dive in, and I love that area of the world (Fiji, Vanautu, Papua New Guinea, Australia - but South Oz, not so much the GBR.)

Best wreck diving: Chuuk is good, but the S S President Coolidge in Vanuatu is first class! Best drift dives: Fiji and soft corals! Best shark dives: Uhm, maybe Tiputa Pass in Rangiroa, French Polynesia, or maybe Darwin and Wolf Ids. in the Galápagos, or maybe the family of Grey Whalers at Nigali Pass off Gau Island in Fiji (or anywhere there are lots of Silvertips.) Best night dive: Off Malekula Is, in Vanuatu, with six (unbaited) Chambered Nautilus on a moonless night at 55 feet. Best manta dive: If you know how, and I do, you can call them in in Yap.

Back June 9 or thereabouts. Keep on diving!