In summary, Ritz Carlton Maldives offers Kerry Hill architecture and the best service we've ever encountered in this atoll nation.
Perhaps one day Aman will open a property in the Maldives... for the time being though, this is as close as it gets.
Singapore Business on the A380 is one of the very best products in the sky. The whalejet has huge side bins, wide aisles, less engine noise and notably better air quality than the 77W.
If you aren't in the mini-cabin on the 77W I'm sure you can make an argument for this being the better product.
I really enjoyed the Air Canada lounge. It did get busier as time wore on but was cleaned constantly and dishes were replenished well before they ran out. Also, the design made the space feel a lot less busy than it would have felt had the seats all been placed in unbroken rows - as tends to be the case in AA or BA lounges.