[veltro]

Also, if I may add my opinion, this "urge" to determine if a fighter was better or "the best" has little sense. The Fiat G.55 probably - in the right hands - was a good fighter , but certainly not an overall best.

It was built for medium to high quote fighting (see its large wing) but when it entered combat (and I mean serious combat in average quantities, namely in the ANR) it had to dogfight against P-51s, P-47s and P-38s and it was in the hands of pilots who had almost no training in "energy" fighting and which had always been taught that "manoeuvrability" was the key...

This could be a good advice flying a fighter like the Macchi C.205, certainly not for something like the Fiat G.55.

For a certain period, 1° Gruppo Caccia ANR even flew mixed formations of C.205s and G.55s and, although the mix could have been interesting if proper tactics had been developed, none was, so that both were used with the same tasks, a clearly improper use...

So the question will never be answered, because to determine the qualities of a fighter, one has to consider the first and foremost part of it: its pilot, the training he was supplied and his experience. Without taking into consideration this element, the rest is only (when available) a series of tables, datas and numbers which cannot be the key to a solution.

All the above, IMHO, of course...