I reckoned this thread would head quickly towards "no match/challenge. do it the regular way"...

25 stays or 50 nights is not actually hard for anybody who values Hyatt status and plans to use it. Like many on FT, I pay my own way to Diamond each year, in part because I know up to 28 nights are guaranteed to be in a suite.

That said, we probably will see all of the chains chase ex-SPG Plats once the loyalty programme merger terms are clear in 2017 or so and hopefully that will take the form of a challenge rather than a straight match.