I prefer the HR's TST location compared to Wanchai for GH. I don't like the breakfast at HR which is only in lounge (GH previously was only in lounge too, not sure currently). But GH is a far superior hotel with much nicer rooms. The suites at HR are tiny and dark (but I haven't stayed at the renovated ones as I guess some have gotten according to thread above).
But I don't think the usually much higher prices at GH are justified, so I'll take HR if there's a big price difference just to requalify for Globalist. If Marriott, I like JW and Sheraton as their locations both are superior to GH and HR and, even though I'm loyal to Hyatt, prefer the Marriotts in the city and will choose them. I don't find globalist benefits that great here without full breakfast or gorgeous suites (never gotten a GH suite though)