Will have to do some testing on it. However, as for flying online, the spitfire, even if slower (say dive, pulling away, go level, pull up and zoom) have no trouble what so ever following a 190 A5.
The test data Soulyss posted was made between a Spitfire Mk V and a Fw 190 A3. the A5 was even a bit faster then the A3.
Will have to do some real testing of it in AH.
As for angles in climb, there is hardly any difference between any planes in AH.
Read a story by an RAF pilot, he said that the Spitfire Mk 1, above 25k had a very high angle of attack just to stay level, basicly flying as if it was climbing although it was only going level.
He was shot down at 30k once while flying level, can't remeber if the attack came from 12 oc or 6 oc though, the story is (I believe) in JG26 Diary.
Point of story, no plane, not even spit and hurri 1's have high angle of attack while flying level at 30k, in AH that is. Another story in real life.