I agree that overall I thing SPG has nicer properties globally. However for my mostly business travel I find Hilton Diamond more worthwhile. In fact even for personal travel the hotels are not bad.

My issue as I posted on Flyertalk is the upgrade issues. I do not need a suite when by myself as I spend little time in most rooms. So it offers little value in itself. HH offers free breakfast or Executive floor at most if not all hotels. This is a real value as I own my own company. SPG has exclusions that when I was considering going from SPG Gold to PLT turned me off. They have what they call towers rooms butler and some other special exclusion. I find this a bate and switch sort of. They have created some hotels within the hotel that seem to just remove a valuable PLT advantage in executive floor upgrades. I do not waht to confilct. I had liked the general stated benie as is was all hotels unlike Hilton with the International clause.