Does anybody know of a resource which compares hotel programs by the award received for the revenue dollars spent?

I have been Diamond gold passport at Hyatt for years, and was recently comped platinum status at Starwood. A cursory glance at the programs tells me I have to spend $4,000 revenue at starwood to get one night at Sheraton or Westin Maui. In the Hyatt program, I only have to spend $2300 for the much better HR Maui.