what bus from HK airport to xi hotel tsim sha tsui? xi hotel to the airport? xi hotel to disney? tnx

You can take the bus A21 to reach Mody Road, Chatham Road South and then walk to reach your hotel directly.
From the hotel, you can take the same bus.
From your hotel to Disney, you can walk to reach Tsim Sha Tsui Station to take Tsuen Wan Line to reach Lai King where you can change to Tung Chung Line to reach Sunny Bay Station. Here you can find Disneyland Resort Line to reach the attraction directly.