Won't work for you as you'd want to do the flights in Jan for 2 yrs status - but if you're happy with Oneworld Emerald vs BA Gold then the current Malaysian "triple" everything promo is very interesting - book by TONIGHT (KL time... so 5pm UK) though.
I haven't run the numbers fully but cost wise seems like running Y segments could actually be best....44 of them @ around 1100gbp. that's a lot of MH peanuts and juice tho
