I would be interested in seeing if they are tradable.
Here is info on from their site. It is the Hilton family of hotels so Sheraton, Double Tree, Embassy, Homewood and a few more all count:
From the way you pack your suitcase to the way you order your coffee, you've got a style all your own. And now to match it, Hilton HHonors offer you more flexibility than ever before.
Earn Your Way
Decide exactly how you want to earn for your Hilton Family hotel stays. Hilton HHonors members can choose from three rewarding Double Dip® Earnings Style Options, and change your preferences at any time! Select either HHonors Points and Variable Miles, HHonors Points and Fixed Miles, or HHonors Points and HHonors Points. Learn more.
Extras Your Way - For Gold and Diamond VIPs!
What do you want in your room when you travel? A room upgrade? Extra water in your room? Or, would you rather earn additional HHonors bonus points for your stays? Gold and Diamond VIPs can choose the benefits that best suit their travel needs at select hotels.
https://www.hiltonhhonors.com/myway/index.aspx