Go read Loyalty Lobby's excellent series that compared major hotel chains back in May. Even after the devaluation, Hilton wasn't terrible. SPG was last, by a country mile, thanks to difficulty in earning miles and obscene redemptions for top tier. Hyatt, when combined with 5x UR was king for top tier (but Hyatt's recent devaluation closes the gap somewhat). Carlson was best for low/mid tier (they don't have true top tier properties). IHG was decent as was Marriott, but not leaders in any category.