I was a long time AY+ member and changed a few years ago to BAEC, but haven't been totally satisfied with BA's redemption availability and some changes in their program. Is there a better FFP for me?

(1) What is your home airport?
Reply: HEL

(2) How many miles do you usually fly each year & in what class?
Reply: >50k

(3) What types of fares do you usually buy?
Reply: Economy in Europe and Business or First in long-haul flights

(4) Can you choose your airlines and/or, class of service?. Do you travel for work and/or pleasure?
Reply: Yes and both

(5) Which routes do you fly most often?
Reply: + 10 flight per/year in Europe, 2 or 3 flights to North America (LAX, SFO, BOS, BGI or MIA) per/year, 1 or 2 flights to Middle East per/year and 2 or 3 flights to Asia (ICN, NRT, SIN, HKG or MNL) per/year

(6) Do you have FFP status of any kind of OW or other airline at present? What is it?
Reply: BA Silver

(7) What is most important to you in a FFP?
Reply: Lounge Access, Redemption rates and availability, Fast tracks, Upgrades and Extra baggage allowance

(8) Preferred Airlines?
Reply: None. Of course CX and Malaysian are always very good options ^

Edit: And it would be a BIG PLUS if American Express works with the FFP.