Out of all the airports we've passed through on our trips to New Zealand to see our daughter and her family, Singapore is one of the best. Even for a couple of 'oldies' like us.
We've never spent more than 2 or 3 hours there so not had much chance to sample all it has to offer, but it's so easy to get around and there's so much space just to wander round the shops and find something to eat. Wish more airports were like that.