Apart from those already mentioned...
(RAF jets only)
Lightning
de Havilland Vampire
I think the BAe Hawk is one of the best looking aircraft in service.
And some interesting ones
:-
Mini Vulcan! Avro 707
Fairey FD2 (beat the world speed record by over 300 mph in 1956 at 1132 mph, beating the record set by the F-100 Super Sabre the year before).