I love Singapore Airlines. They are usually the most efficient with their check-ins and baggage. Inflight, they are very considerate of kids and the newer planes have the best entertainment system out there.
Only drawback is that there is no room for negotiation at SQ. They follow the rules, and no one will make an exception for anything. The other issue is that SQ makes you take babies out of the bassinet in the event of turbulence. Really sucks if you just got the bub to go to bed!