  The critique against using Boltzmann's microcanonical entropy, an "ensemble
measure", as foundation of statistics is rebuffed. The confusion of the
microcanonical distribution with the exponential Boltzmann-Gibbs (``BG'')
distribution is pointed out. Boltzmann's principle is clearly superior over any
Tsallis q-statistics in describing the equilibrium of small systems like nuclei
and even self-gravitating systems as paradigm of non-extensive Hamiltonian
systems.

Statistical Mechanics;Nuclear Theory;Atomic and Molecular Clusters