Originally posted by Dowding (Work)
For me it would have to be the Hawker Typhoon. I don't think there is even a static display example, nevermind a air-worthy plane. I'd just love to hear that huge 24 cylinder Sabre engine turning over or screaming on a high speed pass. 
Another would be the Mossie. I remember seeing the flying example we had over here when I was a kid - but it was destroyed in an accident a while ago, IIRC.
A full size Stuka equipped with siren would be interesting - to get an idea of how terrifying that siren must have been.
I would have added the Bristol Beaufighter, but Duxford are reputedly rebuilding one to air-worthy status at the moment. They are supposed to be doing the same with an La-11 too -which will be the only example flying anywhere in the world.
Hehe, my exact choice too!
They have a Typhoon on display at RAF Musuem Hendon, here's a piccy below:-
The de Havilliand Musuem at London Colney have a B.35 Mosquito which they did say they hoped to get airworthy. I was lucky to have a sit inside it!
Here's the Beaufighter Mk.21 at Duxford. It will indeed be airworthy when completed. Incidently Hendon have a Beaufighter Mk.IX on display too (along with Beaufort).
Not sure about the La-11 but Duxford do have two Yaks, not sure if they're 3s, 7s, or 9s?
They also have a A6M that they eventually want to do some work on.
