Mattolo,

I have only stayed once at the Conrad and it was a mountain view room, so can't comment on the views and honeymoon treatment. I have spent many nights at the GH, in harbor view rooms and suites, and those had amazing views. While I can't comment on the difference in treatment, I can comment on the location.

HK is a small island, but the GH is more "isolated" in the sense that you are not right on top of a subway (MTR) station, whereas the Conrad is right on top of one of the most connected stations (Admiralty). Nonetheless, it's a minor difference, since cabs are abundant in HK and also very very cheap. Both have great restaurants on premise as well as close by, but the GH has a brand new steakhouse that is reputed to be one of the top ones in HK. If you are going in the summer, the GH has a much nicer outdoor area on the 11th floor, with a great relaxing pool, whereas the Conrad has a much smaller pool and not much space outside. Finally, the GH has a great spa (with a whole floor dedicated to it on the 11th floor). I think you can't go wrong with either. Have a great trip!