Tsallis q-Gaussians can be easily compared with Gaussian and Lorentzian functions, and with pseudo-Voigtian functions too. In fact, for q-parameter equal to 2, the q-Gaussian is the Lorentzian function, and for q close to 1 the Gaussian function. Therefore, being q-Gaussians the natural generalization of Gaussians and Lorentzians, which are the functions most involved in the Raman spectral analysis, the use of Tsallis Gaussians is suggested. The semi log scale, that we have used here and in previous works regarding diamond and graphite Raman spectrum analyses, is enhancing the visual rendering of far-wing behaviour; this behaviour is relevant for distinguishing q-Gaussians from other functions. In the previous work regarding diamond spectra, we considered the Tsallis q-Gaussian function compared to Kaniadakis κ-Gaussian function, which is another generalization of the Gaussian function. We have shown that Tsallis Gaussians, Kaniadakis Gaussians and pseudo-Voigt functions are providing slightly different results. It is necessary to know the transfer function of the instrument to determine if it is possible to discriminate the results and decide the preferred function.