Please advice me. I am a newbie in the forum and a new flyer, I would like to get some advice about the FFP selection in OW

(1) What is your home airport? (SFO, SCL, London LHR, HKG, Singapore SIN etc.)
Reply: HKG but could start from any CX destination in far east
(2) How many miles do you usually fly each year & in what class? (<25K, 25k-50k, >50k)
Reply: 25-50k economy
(3) What types of fares do you usually buy ? ( First, Business, Economy etc.)
Reply: economy (would become a J-flyer later)
(4) Can you choose your airlines and/or, class of service?. Do you travel for work and/or pleasure?
Reply: BA, Y+ and usually pleasure
(5) Which routes do you fly most often (US Domestic, Transpacific, Kangaroo, in Asia etc)
Reply: HKG-LHR, HKG-YYZ
(6) Do you have FFP status of any kind of OW or other airline at present? What is it? (AA Executive Platinum, QF Gold, UA 1K, LAN Comodoro, etc)
Reply: BAEC
(7) What is most important to you in a FFP? (upgrades on travel, priority services when flying the airline, extra baggage allowance, good award redemption rates, better award access, free - discounted lounge access, etc.)
Reply: upgrade and lounge access
(8) Preferred Airlines
Reply: BA, CX, JL