I use the name Naphalm a lot.. which was when I used to play a lot of RTS including Command and Conquer Generals. And I attempted to play online (I suck at them really so that didn't last long) but I put my name as Napalm as in one of the super weapons.. but I spelt it wrong. And It's kinda stuck with me. At least it's unique.
As for the name I've used on here. Well my name is Lexy, and my favourite character from the Xanth books (Piers Anthony) is Xavier. Very original I know.