I'm seriously leaning towards BA. I am doing less flying now than I was, but they suit me as LGW is closest. I also have a carribean holiday planned in J, in November, so again this suits and will give me a chunk of miles. A few flights into AMS and other European destinations also swing it. MFU's look quite nice and all in on a WT+ fare doesn't look that different to miles/cash/tax rewards I have made in DC.
Saying that, I do have reservations after some awful BA flights in the past in Y, but money is a bit better nowadays for personal, that WT+ at least for international flights. Business travel is hit and miss, occasional east coast flights, that it is difficult to justify Business Class for, unless a very good deal, but WT+ is a happy medium.
I've cleared out my DC miles, and only some low earning OZ & LH flights planned for June. Some status transfer to BAEC would be nice, although I do have Cathay Pacific Gold courtesy of the recent AMEX offer.