I've had a look around and I think its going to be a toss up between United or Lufthansa. Still not sure which to go for as United's Silver and Gold Status is only 25K or 50K where as Lufthansa is 35K or 100K but I do get miles on Ibis and Mercure hotels which I'll be mainly using, plus I can claim by long haul points with Lufthansa (please correct me if I'm wrong) and I can use more lounges in the EU.

Decisions, Decisions