I have flown all three and here is how it went:LH--SFO-FRA-AMS-MUC-SFO no upgradeEK--DXB-JFK no upgradeBA--JFK-LHR bumped up to business classBA--LHR-SEA no upgradeBA--PHL-LHR bumped up to business class.It really comes down to the gate agents because my friend has been upgraded often on LH.