Nb . Hotel Mode
Passengers will however choose BA over other airlines to avoid the zoo of T3
An interesting observation and I've no idea of course if it is a valid point.
For myself the terminal of departure would be my last consideration when weighing up the options; given that the destination is cast in concrete, then things like airline of preference with regard to safety (and there are a couple that I will never fly with, and BA will be added to that list on 1st April 2014 - for a different reason not related to safety of course) price, time of departure and / or arrival, number of stops etc would come first, where I had to get to for boarding would only feature of all else was equal.
Still, England is not the England I was born in, grew up in, and worked in, nor BA the same BOAC / BA I flew for, so maybe a choice between T.3 ( which I only used as an example ) and T.5 is an important factor now
Thank you