BA or Quatar
 

Looking to fly to Bangkok from LHR.

Options:
BA, £2500 return Club, use 30000 miles to upgrade one way First

or

Quatar via Doha, but only £1700 return Business.

Any advice which is better? Never tried Quatar, but have loyalty to BA.

The BA flight will be direct while Qatar would have a stopover. Depends if you want a cheaper flight and try a new product or pay more for BA F?

While you're on about Quatar, have you considered Quantas as well?