Originally Posted by
toyotaboy95
IT is usually ranked higher than 9W. Also, with your CX status, it might come in handy when IT joins oneworld next year (if applicable).
I'm guessing the OP probably wants to travel before IT joins OW next year. In that case, if mileage is important, OP should fly 9W as those miles can be credited to Asia Miles. Mileage earn rates are as under:
https://www.asiamiles.com/am/en/earn...000ad21c39RCRD
However, you will NOT earn Club Miles (status miles), only Asia Miles. Right now, ironically, flying on IT, a OW member-elect, will not get you any miles or any benefit on CX.
If mileage earning is not an issue, just fly whatever suits you best price and schedule wise. Some people say that IT is better, others say that 9W is better, and the difference between the two is really not significant. They are both excellent airlines, and either way you should have a good journey.