Hi all,
I've been browsing around these forums studying the differences between AAdvantage and Mileage Plus, but I thought I'd ask for people's opinions based on my specific circumstances. I'm going to be travelling monthly for work between BOS and ORD and will have some liesure travel peppered in there (including a flight to Taiwan at some point). I'd like to make the most of my flying miles, so I was wondering what people thought would be the best program.

Any thoughts?