We're not leaving HKG the next day. We'll leave around 9-10am the next morning to head into town. We're staying at Conrad the next day. Regal/Marriott is 1/2 the price of Conrad, and we didn't want to spend 3,000 HKD/night for a midnight check-in.
After reading @
gpia's comment on Regent, I've made up my mind. Marriott it is.