Worst I ever flew was Aeroflot domestic (closely followed by Balkan). Hideous green mint flavoured drink that looked like it had come from Chernobyl. Food was all pickled. When the plane took off a row of seats capsized and then when landed in Murmansk I thought the thing was going to crash, so violent were the sideways swerves. Only when I looked out of the window did I summise that the captain was avoiding the potholes towards the end of the runway. Awful. I wasn't expecting vintage Salon and Beluga either.