From original document:
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AH: What do you consider to have been the best fighter airplane--regardless of nationality--of World War II?
Kozhedub: The La-7. I hope you understand why
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The answer of other aces:
Hartmann--109
Remske--Ta 152
Yeager--P 51
Zemske--P47
J. Jhonson--Spit
...
La 7 maybe the best fighter of AH(and Russia front because low alt battles), but at RL if alt 10000-20000ft then La 7 was average and more 20000ft are crap. SA is the key(like Kozhedub says), and SA is more E.
My regards.