HKIA to harbour view hotel by bus or mtr which is more convienient.

Renaissance Harbour View Hotel, right? Well, I prefer MTR. By MTR, you don't need to walk. By airport express train to HK Station and transfer to free shuttle bus H1 to your hotel directly.

By shuttle bus no. A12, you do not need to transfer. Get off at Immigration Tower, Gloucester Road and you need to walk to your hotel. And the travel journey is much longer than by MTR.