The main reasons I have give up on LHR & BA! In space of 12 months having arrived on time or even early then missing connection due having to wait for a stand! They don't appear to like changing a stand when things go wrong, on two occasions we sat over an hour waiting for 'our' stand whilst other inbounds went straight to stands?? The third time we waited 90min for BA to find a qualified A380 push back crew to push the A380 off 'our' stand, we only got a different stand because the A380 flight was cancelled due to crew hours!!
BA is a great airline away from T5 LHR!