On the majority of my flights into and out of the new HKG, we used 7L for landing and 7R for take off.

Here is a photo I took after departure from 7R from the left side of the aircraft, when we were above HK Island, looking down at the old Kai Tak runway.

http://rkkwan.zenfolio.com/p1034994400/e14ee7537

When the wind direction is reverse, they'll use 25R for landing and 25L for take off usually, I believe. In that case, when landing you'll get a good view of Victoria Harbour and the city from the left side of the aircraft a few minutes prior to arrival.