(1) What is your home airport?

Reply: SEL (ICN or GMP)

(2) How many miles do you usually fly each year & in what class?

Reply:Somewhat more than 50k (Edit: to clarify, these would be the miles that would mostly on One World, separate from my current personal and other business flights on *A, which are about another 40k, but that I would like to keep with *A unless One World completely blows me away)

(3) What types of fares do you usually buy ? ( First, Business, Economy etc.)
Reply:Economy

(4) Can you choose your airlines and/or, class of service?. Do you travel for work and/or pleasure?
Reply:Personally, I fly OZ whenever possible, but new work has me frequently flying with JAL in Y soon. My OW inquiry is exclusively related to travel for work, probably all in Y, and pretty much all JAL.

(5) Which routes do you fly most often (US Domestic, Transpacific, Kangaroo, in Asia etc)
Reply: I will almost exclusively be shuttling between GMP and HND. Should I personally fly with OW later on, there might be some ICN-FRA and ICN-SFO flights as well.

(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: None so far. In fact, I've never even flown an OW airline before. I've always been a Star Alliance guy and occasionally flown a Sky Team airline whenever they were offered the only reasonable routing/price.

(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: 1. Upgrades
2. Priority services and lounge access
3. Good award program (in terms of both access and redemption rates)
(8) Preferred Airlines
Reply: I will be flying pretty much exclusively JAL, though if I get enough miles on OW and am happy enough with the program I might occasionally fly AA or BA in the US and Europe, respectively and I've always wanted to try CX for intra-Asia or possibly also to the US.

My personal thoughts at the moment are that it's probably best to go with the JAL service as in my experience you get better treatment in the long run if you are a FFP member of the airline whose metal you are flying, but the earn/burn ratio looks quite bad, so there is a better option after all? Please keep in mind that I'd probably have issues with any requirements to accrue x miles on a specific airline other than JAL.

Thanks in advance for any input and suggestions!