Hi Galega, the secret is, on your return trips to Europe can you afford Business? If not , you will be buying Y and upgrading to C, then you want an airline that will fly direct or close to it, Out of the SIN/BKK hubs, I would choose TG/sq. I take TGbecause it's 2years, the BKK hub which I use has the best lounge and they give a yearly upgrade FOC. Also I can buy some very reasonable priced fares in your part of the world. I usually pay 2K less on TG, multipy that out over a year, TG saves me money which I can use elsewhere, regards bkkrop