I have a Shanghai trip planned on Christmas and New Years.

I'm a Diamond Member and still have 1 DSU upgrade left.

I already booked 2 nights with Park Hyatt Shanghai using DSU (Only available for two days). Can't wait for this stay; 130m room

Between Grand Hyatt Shanghai, Hyatt on the Bund and Andaz Shanghai, which property is best to use DSU? All three are available for Suite upgrade.

Someone mentioned there is no need to use DSU on Andaz Shanghai as Andaz XL King rooms are pretty good.

So... which is better? Grand Hyatt Shanghai or Hyatt on the Bund (or Andaz Shanghai) for Diamond Suite upgrades.