For a Hungarian who lives and travels in Asia a lot, it has to be Star alliance. Simply because FRA/VIE/ZRH (Lufthansa/Swiss/Austrian) are much closer for business connections, Turkish/Egyptair are the cheapest (and Turkish is actually the fastest) way to travel to Eastern Europe, and of course nothing compares in service to Singapore Airlines (and Asiana/Thai). The alliance is large, and they do compete with each other, but for me, thats the advantage, I'm able to earn miles wherever I am, and I can always choose between 3 types of travel: speed, comfort, and price.