Hello, I am flying Turkish Airlines in J from FCO to DXB (and back on to LHR on OW). I have an account with Lufthansa but have never gotten anywhere (opened when I arrived as a backpacker and was always cheap Y fares); however, I am now traveling more for work (in J) and wondering which scheme might make sense to maximize usability of points and potentially status (currently Gold on BA and usually travel OW). Qs answered below.

1) What is your home airport? LHR or LGW
(2) What types of fares do you usually buy ? (C, F, Y, etc.) Leisure - Y or Y+; Work - J or Y for shorthaul/Europe
(3) How many miles do you usually fly each year? (<25K, 25k-50k, >50k) 25k+ but usually OW or LCC
(4) Do you have any kind of status at present? What is it? (UA Silver, M&M Senator etc) BA Gold
(5) What is most important to you in a FFP? (Frequent upgrades on travel, priority services when flying the airline, good award redemption rates, free lounge access, etc.) Award redemption; lounge access in Y; upgrades (in that order for *A)
(6) Which routes do you fly most often LHR-DXB and LHR-PHL and LHR-SYD (usually Y+ or J on sky team)