Whilst the QF programme is one of the meanest i(if not the meanest) n terms of redemptions within OW, it is one of the only programmes where almost everything credits. Suspect this would probably work best. The other option is going with CX as you will by flying with CX I am sure your fares will credit there. The problem with the CX programme is that you don't get status bonuses unlike other OW programmes.

Finally, some people have said a few good things about AY (Finnair) so I suggest you take a look at their site as I think most fares credit there too.