I am a Hilton Gold via AMEX, so I stay with Hilton now and again. I have to say, their elite benefits are very nice - breakfast, often lounge access as a Gold, but the trade off is the insanely high number of points it takes to redeem.

FOr me, as a more casual and personal paying traveler at the moment, the Free nights seem to be the easiest to earn at Hyatt, but since I will never be a globalist with Hyatt the elite benefits are not that grate.