Who would you choose for Star Alliance, Skyteam, and Oneworld?
+ You can be biased and base it on customer service standards, consistency, in-flight product, etc...
+ You should choose one airline (major or regional) from each continent except for Antarctica.
+ Your choice in grouping your airlines can even to show how competitive each can be... Cathay with Air Canada in the same alliance, for example. Air Caraibes with Norwegian and British Airways in another, and so on...
For example, choose at least one airline from each continent plus one mid-east airline:
+ Singapore Airlines
+ Air France/KLM
+ Kenya Airways
+ Virgin Australia
+ Air China
+ British Airways
+ Korean Air
+ South African
Let's make this fun!!!!