The winner was myself with a pair of Russian Government IL.62s in Aeroflot colours at a comparatively rural Heathrow on 15th July 1991 and the days of glasnost in the early post USSR years as President Gorbachev visited London to take part in the G7 summit when friendship and co-operation was well in evidence. These two IL.62s were just a small part of his aerial entourage that arrived for the visit - what a day that was!

Second was Porkscratching with his Bristow/HMCG S-92A & AW189 arriving at Fairford for RIAT on 14 July 2022:

HMCG S-92A & AW189 by Nick Challoner, on Flickr
and third was ACW367 with wrecks SP-KWN British Aerospace Jetstream 3201 Jet Air & G-OHEA Hawker Siddeley HS-125 Series 3B/RA Cranfield 21 May 2017

well done to porkscratching and ACW367 for their efforts, I'm too modest to extend congratulations to myself
thank you for your support
Andy