Tony Benn was war time RAF therefore more than likely RAFVR than RAF. I think he flew Spitfires in the mid east somewhere.
Norman Tebbit was RAuxAF at some stage in his career and flew Meteor 8's from North Weald on 601 Sqn (I think, though it might have been 604). Not sure however if he learnt to fly in the RAF as a NS or regular pilot, and moved to the RAuxAF at a later date.
Nev Duke was the CO of 615 Sqn at the time he was testing the Hunter and winning the world air speed record on it. Most of his Sqn had flown it ( very unofficially) but the government closed down the flying sqns of the RAuxAF on the pretext that the "new" Hunter was too advanced for weekend pilots to fly. The real reason of course was to save money because UK LTD was bankrupt in the mid 50's.