Interesting read so far. I am EXP with AA, but travel a significant amount now on CX (from leaving UA and doing DCIR trips). I have thought about switching over to CX and get diamond status since the INTL longhaul flights are on CX mostly. However, being based in the US and still doing a fair amount of domestic travel and AA's "earn and burn" ability is tough to beat.

I guess I will have to continue to evaluate this as I go forward.