I agree with Silum. For ease of use, blogspot is the way to go. I have both blogspot (well, blogger.com, same thing) and Wordpress blogs. Wordpress is more like having a website. It's more customizable, more scaleable, etc., and you can tweak almost endlessly to get exactly the look, feel and layout you want. I've never used LiveJournal, but I can see how the format might be better for posting fan fic. If you want to take the time to learn how to use Wordpress, tho, I'd go with that. If not, and you just want a few user-controlled options and ease of use, I'd go with LJ or Blogger.