Conrads, whereever they are, are by far better than any Hilton. US Hilton are camping sites compared to Conrads and even to non US properties.

HK Conrad is very nicely located and very comfortable. The SIN Conrad has a nice, dedicated staff,and you never feel overwhelmed by people, even when the hotels is full. It's not "central" but not far from a brand new subway "exit" ( let call it newest shopping mall cum subway!). The swimming pool site is not so nice but this hotel is great.

in Brussels, do try the Conrad, a beautiful, large mansion. Seems that's the place where Clinton used to put up when he came to Brussels...( OK, that's no reference! ;-) )