I campaired there fighters on the componets guide.  Rm was ok still behind U.S and KM.

U.S is still the best but im lvling a full eilte boosted fighter whore with 2 tbs for rm.

how good italy ft compare with other nations?

as far i know form the best to worst, us > km> sn>mn> ijn> uk.

any help will be appreciated

After a while, the italy ftrs are bad as IJN ftrs or between MN somewhere..
For DB and TB are quite similar as from UK Bombers..