I think this was the first race where I really felt that the (somewhat complicated) tire compound rules made the competition really interesting.
Hamilton and Mercedes were not only considerably faster than every other car/driver on the track. But thanks to a totally unrelated Safety Car appearance, his 3-stop strategy came very close to losing him the race.
It was also the first race where I got the feeling that the drivers (even Hamilton) were on the edge of losing control of the race. Several of the radio transmissions showed otherwise experienced, highly skilled, drivers getting a little frantic about everything from the temperature in the car to expressing doubts about the longevity of their tires.
The Singapore setup, with its nighttime running, makes for an interesting race. But the visuals were pretty unpleasant. Most of the time it seemed that the cars were running in a dingy concrete tunnel. None of the gorgeous scenery and backgrounds of many of the European races. And I got no sense that there was a crowd actually watching the race.