I am flying BA from PDX to Vancouver, BC to LHR to JNB and to BNR and back. Going on an Around the World fare in economy. I might do this trip again this year. With BA being partners with AA, I thought that applying this flight to AA would be better since I live on the west coast in the U.S. In the past I have made a couple of European trips as well but have always been on DL. So, I guess my question is, should I start an AA account and put my BA miles on there- would it be beneficial? Or would I be better off having a BA account and applying any domestic AA or Alaska miles to it? AA is having a special right now so I could possibly earn double miles on part of the trip. I am not entirely clear if I can make Gold if none of my flight is AA. BA and Quantas. I appreciate your input!