Don't know where to ask so I guess this is the right thread for it.

I'm planning to buy airlines tickets worth around RM9K today. Which cards is better or gives the best value for money (in terms of promotions, rewards points etc etc)

These are the cards I own

1. HSBC Signature
2. HSBC Gold MasterCard
3. HSBC Amanah Platinum
4. Citibank Platinum
5. Maybank 2x Platinum MasterCard
6. Maybank 2x Amex Platinum

Have so many cards but not sure which one to use. Credit limit is no issue.