I don't see any recent answers to many of the questions, but nothing to lose so I will give it a try:

(1) What is your home airport? TPE/TSA
(2) What types of fares do you usually buy? Discount economy, economy, business for trans-Pacific
(3) How many miles do you usually fly each year? >50K
(4) Do you have any kind of status at present? What is it? Yes, *S via Marriott Platinum, was *G for a year with another job. Delta Platinum Medallion = SkyTeam Elite+, which I barely kept last year and hope to keep this year again.
(5) What is most important to you in a FFP? Priority check-in and lounge access
(6) Which routes do you fly most often: TPE-CNX 8-12 times/year, TSA-SHA or TPE-PVG 12 times/year, TPE-LAX 1-2 times/year in business
(7) Preferred Airlines: For this question it would be BR, TG, and UA
(8) Do you travel for work or pleasure? Both

I have kept SkyTeam Elite+ for 4 years now, but my second home is served by TG and BR from Taipei. BR just started a non-stop service to CNX so it has become more of a priority to get back to *G, if possible. I have been using my UA number for TG flights, but it does not get me anything at *S. Wondering if it is easier to reach *G with BR or TG based on my travel patterns. Difficult to switch the SHA-TSA flights to * because the CI/MU alliance has much better availability and pricing than BR.