I've got diamond status with Hilton and platinum with Marriott. I'm looking at adding a new top tier hotel program to my portfolio in 2013. I sleep in hotels for around 200 nights a year, not counting vacation, so I figure this would be pretty easy if I start doing some hotel-hopping and qualifying on stays where available. I could look at the various websites and compare the advertised features, but I'm looking to the community for any real experiences or unpublished benefits that might sway me toward one program or another. What's your experience with program other than Hilton or Marriott?