I think names like that are unoriginal. If your name is taken then it isn't original in the first place but hey that's just me. My names have always just been "Name"
I originally created the name tag right after the launch of the original xbox live service in 2002. I have used it ever since then. So 12 years of gaming on the same tag.
None of those. If you have an X in your name it's because you couldn't get the normal version that you wanted. Therefore is unoriginal and not as cool as a regular name.