Can't believe how poor Hilton's coverage is in Cardiff compared to Rezidor, Accor and even HGI.
They only have the one property (with a great location although it could apparently do with a refurb), and its rates are high compared to the competition, at least at the moment.
I could see the Future Inn as a Hampton (only need to change one word), the St David's as a WA (ahem!) and maybe the Village or the Copthorne as a DoubleTree with a lot of refurbishment.