Duxford. Hands down.
(seen 24 Spitties in the air at the SAME TIME)
In one day....Spits, Hurries, P51's, A20, F4U, F6F, F4F, F7F, F8F, B17, P47, Yak-3, etc etc...even WW1 Se5a, Fokker Dreidecker and Bristol.....it's insane.
Blenheim...Gladiator....Lysan
der......droooll...