  We analyze the different parametrizations of a general four-zero texture mass
matrices for quarks and leptons, that are able to reproduce the CKM and PMNS
mixing matrices. This study is done through a Chi-Square analysis. In quark
sector, only four solutions are found to be compatible with CKM mixing matrix.
In leptonic sector, using the last experimental results about the mixing angles
in the neutrino sector, our Chi-Square analysis shows a preferred value for
m_nu_3 to be around 0.05 eV independently of the parametrization of the
four-zero texture mass matrices chosen for the charged leptons and neutrinos.
