What miles should I use for an economy SIN to BKK flight on either Singapore Airlines or Thai Airways? I got all the major credit cards (Amex, Chase, Citi, Capital One), United, Delta and Alaska miles. My comparison will be with Scoot flight which cost $125, factoring bag fees and seat assignment fee. Singapore Airlines is on sale now at 25% of 13,500 SQ miles. But, it is still more expensive than Scoot based on the value of transferrable points I need to use.

Choices:
- Scoot $125 - I prefer not to fly Scoot, due to many bad reviews.
- Singapore miles: 10,125 per person + fees of about $50
- Air Canada miles: 8,000 + $75
- ??? Any better choices?

Thank you.