So one of your failed upgrades was due to no standard suites available for sale (or any suites of any kind), and on another, no standard suites (but your expectations were they should upgrade you to a premium suite, outside of T&Cs). Check.

The other two, standard suites were available at some point day of, but your issue is they didn’t pre-block you into them. And at least one of them (PH) could have been booked full by the time you arrived, or who knows what.

Story has definitely been clarified now vs original 33% claimed upgrade rate.

I would say, the majority of us would concur that Hyatt Glob >>> Marriott Amb, given the far better (objectively) benefits package. And at a much easier $ spend too. But hey, this isn’t universal, and everyone has free will to choose a program that best rewards them.