Hi I am going to the Best Western at Causeway bay . Which stop should I use?

Do you start from HKIA? If yes, you can take airport express to HK Station first. Then walk to Central Station and take Island Line to Causeway Bay Station, Exit A. The whole way takes around 50 mins with the ticket fare of 100 HKD per person. After arriving, walk southwest around 280 yards to find the hotel.