...amazingly enough, this is actually a worse poll than the unforgettable "pork vs. chicken" cooking smells showdown.
Do whatever suits you the best. If you change your username here, I would imagine that we wouldn't be too confused for too long. Why not make your HT username some VARIANT of "Charles"...that way, people that know you from other message boards could use the fact that the avatar looks familiar along with the fact that your usual login is part of the username to figure out that it is, in fact, you.
Or just post lame polls, then they will know it's you without even looking at the username. I keed, I keed