Pardon me if this is already present and I just didn't read clearly enough, but I propose an addition to the Forum Rules that would read something like this:
DO NOT post "which distro/GUI/application is best?" threads. This is a personal preference and only *you* can answer that question. Do what we do: try them all out and pick the one you like personally.
I may be alone, but I'm tired of having to tell people this over and over... :?