Or, put differently: Given the relatively high dimension of preference space (desktop environment, window manager, file manager, icon set, web browser, editor…), it appears strange to me to assume that more than just a few users will be satisfied with the default DE, WM, file manager etc. installed by a distro. Just five different DEs, five different WMs and five different file browsers already give 125 possible choices. How, then, is it sensible to judge a distribution by its default programmes, especially since these can often be easily swapped out against others.
Surely, the main points in considering which distribution to choose should be the low-level ingredients (package manager, for example) and update policies rather than the default icon theme.