Some of us only fly about 50,000 a year, so using one carrier when possible is a good idea for the gold level.

Having said that, AA (and America West) use BA for Europe and Asia while Delta uses Air France. I have four trips overseas in business class (Singapore, Shanghai, Warsaw and London) this summer and want to use one of the two. Which has better business class service?

Yes, I could use Cathay Pacific (AA) or Korean Air (Delta), but CP's connections are not good for me and Korean Air ... believe it or not, their ultra-cheap business fares scare me. Why are they sooooooooo low? Beside British Air flies to Beijing and AF flies to Shanghai as well.

Any help would be appreciated.