Another aspect to the question may be what exactly should be in the AOW course and how should it be taught. Let's leave out the number of dives thing, since we know you can get the PADI AOW card with a total of 9 dives. And, some will say that they know a diver who is outstanding who has 25 dives and another with1,000 who sucks, and maybe is also a DM or even instructor.
So, The course? (I'll talk PADI because that's all I really know).
5 "sample" or "adventure dives"-- They all should revolve around diver competence and/or safety. Let's take my own experience taking AOW--
1 & 2 --of course the required NAV & DEEP. Nav qualifies for obvious reasons. Deep is good because at some point probably most divers will venture beyond 60.--Now though, consider that my Deep dive was to 63. Maybe the big thing here is you have to do it to around 100'. I know that's not practical in some locales--but--referrals for it?
3. P.P.Buoyancy. Good. I know, you should be good with this after OW, but extra work can't hurt.
4. Night-- Maybe. Possible help when you will eventually hit like 1 foot visibility on a day dive.
5. "Nitrox Adventure Dive". No. No point unless you do the whole course (which for years has required no dives anymore).
Maybe a good one would be S & R.-- Who knows when buddy separation may require a search. Safety.
There may be other good ones-- and for sure a few that don't fit my parameters. Same idea on this goes for the PADI MSD
cert. -- No basket weaving courses should count toward that either.
Regarding how these dives should be taught-- Of course some things will vary per instructor. NAV-- learn natural & compass navigation and get where you want to go. The full course-- do squares, triangles, etc. The instructor I had was a full cave diver who at the time was well known for his exploration like 300 feet into a (some?) cave(s) in N. Florida. He had to brush up a bit to explain the Nav Finder to me. I mean, I don't think a lot of this stuff is expainable in TOO many different ways.
The word "Advanced". When I got the cert. I had 15 dives. I'd have to be an idiot to think I was in any way advanced. But, I understand why some would be concerned. In the Pub someone posted that masks are bad because like wearing a seat belt, masks could cause people to take bad risks-- like an Advanced diver with 10 dives doing stupid things. That's human nature, and I am not giving a lot of thought to those dopes.
In my Signature-- IS my book "The Most Advanced"? Well, I've played through many many advanced books and can honestly say I've found none any harder than mine for sure.
BUT--- It's a TITLE, like a certification. Nothing more.