You may also consider the Metropark Causeway Bay, near the Tin Hau MTR station. Get a harbour view room. If you can extend your stay to 7 nights, the long stay rate for a harbour view room is HK$7,350 inclusive of service charge, complimentary Internet access, morning newspaper, etc.

I have stayed at this hotel serveral times and have always been impressed with the services.

The A11 Airbus has a stop almost directly in front of the hotel to the airport. (The hotel is on an one-way street, so from the airport is a little "tricky" - I use the Airport Express and hire a taxi at HK Station.)