Kenley
Kenley is a real survivor and as mentioned before can not be sold off by the MOD.
Frelon mentions the 'listed' Officers Mess' burning down,but it was not part of the current facility and has been derelict for some years.
The only 'downside 'for Kenley is its actual size and more airframes would not really compensate for that.
However its location is the real plus point as it sits very close to a huge number of active Squadrons and also has rail and bus routes close by.
The answer would be some 'out of box thinking' that got some mid week flying going to make best use of the facility. I suspect that this could be staffed by those from a defunct school and would only add to the 'best use' scenario.
Also it would be possible to run extra summer continuous courses using the same 'staffing' option.
Either way my 'favourite airfield' will continue to provide the ATC with a SECURE BASE as long as required.
The Luftwaffe failed to destroy Kenley on 18th Aug 1940 so the cretons at HQ Air Cadets and the numpties at 2FTS have no chance.