Well, as the name implies, I prefer Trekker. I started with TOS, and I think those of us around early on felt that Trekkie became a negative term for us, so we found a more adult term like Trekker we could feel comfortable with. Trekkie sounds like something a kid would be. I don't really care, call me Trekkie or Trekker, but I prefer Trekker. I just wouldn't feel right being Longtimetrekkie.
The needs of the many outweigh the needs of the few, or the one.