I hadn't really thought much about moving my hotel business elsewhere until I started reading this thread. I've been Hilton Diamond or Gold for the past 9 years. I typically do about 20 to 25 stays each year. I think the best alternative program for me is Hyatt. There are Hyatts in all the places I usually travel. However, I will probably end up paying more for each stay. Perhaps this will be offset some by the FFNs.
As I am currently HH Diamond and dropping down to Gold next year, perhaps this would be a good time for a status match and try another chain. It will spice up my travel life.