When Hilton "devalued" their points last year, everyone over there got up in arms.
Marriott is just keeping up with the Jones'. SPG will probably do the same next year.
I do like that there are no Blackout dates now. With far too many of the initial choices that I looked for having no Standard availability, I will welcome the changes.
Now Hilton and Marriott are basically the same and I will keep Diamond and Platinum with both, but I do like (new?) Citi Visa where you get 6 points at Hilton so that will be 21 points per dollar (when using Points+BonusPoints)