  Whether the neutrino mass spectrum is normal (m_1 < m_2 < m_3) or abnormal
(m_3 < m_1 < m_2) remains an open question, but we show that the latter
possibility looks quite unnatural when it is related to the lepton flavor
mixing matrix U in a way similar to the reasonable correlation between the
quark mass spectrum and the quark flavor mixing matrix. Taking into account the
freedom in choosing the basis of weak interactions, we make a novel prediction
for |U_{tau 1}|/|U_{tau 2}| in terms of the three neutrino masses in the large
tau mass limit. This result is testable, and it implies that the normal
neutrino mass ordering is more likely to coincide with the observed structure
of U.
