IB is nicer than LH in J, about the same in Y, for TATL. Both are superior to BA and MAD doesn't shut down for a week when it snows, or leave pax stranded for days at worst, in line for hours at best. Maybe flying BA code on IB metal is the better choice TATL? The LHR T5 lounges are gorgeous, but nothing else good about flying BA these days -- sad to see how far that great airline has fallen.