As my Qualiflyer miles are most likely not worth anything anymore, I am looking for an alternative. Since LH has pretty good fares out of Zurich, I guess that I will fly them fairly frequently from now on. I'm already booked on one LH and one OS trip, yet I'm no member of any Star Frequent Flyer program so far. What would be the best one for me to join?

Here's my travel profile:

I am based in ZRH, and will mostly use LH and OS for mostly intra-European flights, with the occasional transatlantic flight and rarely flights to Asia. All flights will be in Economy, flying on student fares. (Y-30%) I intend to spend miles rather on transatlantic upgrades than on free flights.

Some kind of mid-tier status would be nice, but given my total yearly travel I guess I won't make it to a top level.

I very much appreciate your help.

airoli