Originally Posted by
USAtoUK
Thanks for this info! My best guess is that there will be (from London) 3 round trips to North America. 1 to Asia, and 7 to Europe each year. For USA domestic, I am guessing 3 round trips per year.
With this profile you're probably better off sticking with AAdvantage.
Also depends on how you're planning to redeem your miles. Given your travel plans seem fairly set in stone calculate what you'll earn on both and what it's likely to cost you to get where you want to go.