I have an upcoming flight with Brussels Airlines from MAN to COO and I currently have no foot in Star Alliance. Brussels Airlines don't have their own FF program, using Miles and More instead. Since M&M have already had a big, fat chance to earn my loyalty (hint: they blew it), what would our assembled experts recommend?

I've zero chance of earning any status for the foreseeable future so I'm looking at good earnings, no expiry and perhaps the opportunity to use accumulated miles for things other than flights.