Interesting point that sometimes you can earn more in AAdvantage than in BAEC if travelling on discounted Y on AY.
last year i did a LHR-HEL-BOM return booked from travelpack.com for £305. It was R class booking. On BAEC i would have earnt 25% miles and no tier points but on AAdvantage i earnt 100% miles and 150% status miles.