  The present possible evidences in favor of neutrino masses and mixings from
solar, atmospheric, and accelerator experiments cannot be all reconciled in a
three-family framework, unless some data are excluded. We grade all possible
three-family scenarios according to their compatibility with the available
data. A recently proposed scenario appears to emerge naturally as the most
likely solution to all oscillation evidences, with the only exception of the
angular dependence of multi-GeV atmospheric data in the Kamiokande experiment.
We describe in detail the status and the phenomenological implications of this
``minimum sacrifice'' solution.
