Originally posted by Pyro
What's wrong with the Vb - F-4 matchup? They were contemporary opponents and I think that would be a good matchup.
Maybe he is thinking of the very early Spitfire Mk Vb with the fabric control surfaces, float carburator and Hispano Mk Is rather than the more common Spitfire Mk Vb with metal control surfaces, improved stopgap carburator, Hispano Mk IIs at +12lbs boost.
I still like the list I posted in the Aircraft and Vehicles forum:
Spitfire Mk Ia (+12lbs boost)
Spitfire Mk Vb (+12lbs boost, metal control surfaces)
Spitfire F.Mk IXc (Merlin 61 at +15lbs boost)
Spitfire LF.Mk VIII (Merlin 66 at +18lbs boost and full span wings)
Spitfire F.Mk XIV (Griffon 65 at +21lbs boost, perked)
Spitfire LF.Mk XVI (Merlin 266 at +25lbs boost, clipped wings, lightly perked?)
Seafire L.Mk III (By far the most common wartime Seafire)
That gives a usable Spitfire coverage for any theater and any year of WWII.