Originally Posted by ziplaufwerk
… As LX will become a part of LH, I will probably be forced to accept the LH conditions.
This is an error on your behalf! Nobody
forced you to accept the LH conditions. Your are free to choose whatever carrier you feel that suits your travel needs best. If the carrier of your choice participates in more than one FFP, feel free to choose this FFP you value best.
Originally Posted by ziplaufwerk
However, I believe that LH M&M doesn't suit my travel needs.
I never heard that any FFP will satisfy travel needs. I suggest you choose eg an alliance, a carrier first and than search for a FFP that offers you values you like best.