I think at the moment they have brought back Hilton Gold, reports seem varied on the subject. That originally was only for a single year, the front page of the benefits of amex platinum uk seems unclear.

They used to have Accor hotel chain Platinum (Ibis, Novotel, Sofitel, Mercure), but that was dropped last year. Someone said Hilton coming back was related to that, but the former used to be a yearly renewing status.

SPG Gold has now merged with the Marriot rewards, so you get gold for both of those. And Club Carlson gold. Though never found much benefit to that, because when I was upgraded to one of their business rooms, I was denied lounge entry, and given that it's pretty much the same room as the rest, with lounge entry, I never booked another Radisson after that...