Darwin,
By way of explanation - I'm on 3 months holiday out of Australia, 2 months of that in Singapore (ma-in-law keeps a room for us at her place)
I just got back here from a month of Europe - england, scotland, france, holland and must say Changi leaves every airport I passed though (I think it was 7) for dead. Cleanliness, crowds, immigration queues, free internet access - singapore leaves them for dead. (Caveat - apart from the budget terminal which is for plebs llike me and for which every expense has been spared)