I wouldn't go that far, but I too was left wondering about that selection. I expect that there is a bias in the polling with more US based travelers responding. I'm certainly not slagging Hilton as it is one of my preferred big brand hotels, but it's reward program isn't anything great. If one does not stay at Accor or Intercontinental hotels, one won't know of their programs. Sadly a non issue for me as I am not staying in hotels and won't be until 2021. : (