L & G, I give you my thoughts.
Most beautiful: Spit Mk II
Best sounding: Spit Mk II
Most graceful: Dakota
Most nostalgic: Spit Mk II AND Lancaster
Most fun: F3
Best looking: Spit Mk II and 'clean' F3
Most useless: GR7 (try keeping up with anyone in a big package - and A10s don't count!)
Best at airshows: Typhoon (never know what it'll do next ...!)
Most wanted by joe-public at airshows: GR7 (ditto above!) / Reds
Longest in active service: Chipmunk/Canberra
Most stupid looking: Flying mushroom
Biggest galley: Nimrod
Best rotary: oxymoron
Furthest past its sell-by date: Jaguar (but still capable, even now)
Best stealth capability: Sentinel
Most proven aircraft in inventory: Hurricane
Ta daaa.
Favourite: 4 ship of F3s with JTIDs, AMRAAM and ASRAAM.