Divorcing United so looking at my best options, which can be either oneworld or another Star carrier.

I'm presently BA Gold, but the lack of award availability in F and YQ sur-charges have left me rather unhappy. Plus I do not find BA a particularly good carrier in F or C.

LH Senator has been rather good, although redemption rates are high and YQ is onerous.

Thinking of AA since domestic upgrades would be nice.

Questions

(1) What is your home airport?
Reply: San Diego, but most tickets are bought ex-Bangkok.
(2) How many miles do you usually fly each year & in what class?
Reply: ~175,000. 25K in advance purchase economy. 115,000 in discounted business, generally ex-Asia. 35,000 in paid first.
(3) What types of fares do you usually buy ?
Reply: Usually buy discounted business internationally and economy on domestic U.S. flights. Maybe 35,000 a year is in paid first, but usually on an around-the-world ticket or if I find a good deal.
(4) Can you choose your airlines and/or, class of service?. Do you travel for work and/or pleasure?
Reply: I choose both my airlines and class of service. Most travel for work. Maybe 20% for pleasure.
(5) Which routes do you fly most often
Reply: Trans-Pacific. If going to Europe, will usually fly ex-Asia.
(6) Do you have FFP status of any kind of OW or other airline at present? What is it?
Reply: LH Senator. Will be UA 1K next week (Platinum Million Miler at present). BA Gold, which expires shortly.
(7) What is most important to you in a FFP?
Reply: Good award redemption rates and upgrades.
(8) Preferred Airlines
Reply: CX, SQ, OZ, NH.