Who is shifting away from Hilton? To where?

Due to Hilton's recent devaluations, the value proposition for continuing my spend with them is pretty much gone (I travel weekly for work). My core rewards program is SPG and Hilton helped provide more hotel "coverage" with some nice brands. I'm considering switching from Hilton to either Marriott or Priority Club. Each has their pros and cons and I'm still debating which one to go with (leaning towards Marriott).

I'm wondering who else might be thinking about switching from Hilton and what other programs they're considering switching to.

Thanks.