Brize..... not so bad
A lot of anti Brize opinion but from the point of view of charter aircraft operating crew Brize is a far better place to operate from that any UK civil airport.
Fuel is available immediately on request, next to no ATC delays & passengers are moved to the terminal very quickly (not like LGW if you are parked on a remote stand!)
From a CRM angle the crew are not exposed to the bunch of half witted, officious, petty minded numptys that have been given the excuse to intimidate and harass crews in the name of "security".
I would think that the transit of passengers at Brize should save about an hour over the time from aircraft to leaving the terminal at one of the bigger UK airports. so I think that this should be factored in when selecting an airport, after all the most important thing after a spell in a hot and sandy place is to get home as quickly as possible.