Yes, even though there are relatively few Diamonds, on any given day, there may be more Diamonds at a given hotel than non-elites because Diamonds stay at a Hilton much more often than non-Diamonds. On occasion, I have asked the manager at a property that I'm staying at what the proportion of Diamond/Gold guests are at that hotel. There have been many occasions where I was told that more than 75% of the guests on that day were Diamond or Gold. Typically, there are more Gold than Diamond, although sometimes the numbers are close. Interestingly, there are usually more non-HHonors than Blue. Of course, the statistics vary dramatically from property to property and at various times of the year. From my experience, there are a large number of Diamonds and Golds at Hiltons in major cities during the week. There tend to be fewer Diamonds and Golds on the weekends or at lower end properties in remote locations or at resort properties (again based on my non-scientific "survey"). There also seem to be fewer Diamonds and Golds at non-US properties (particularly Conrads).