I mostly use Blogspot (by mostly, I mean I have like a dozen blogs on Blogspot...).  It's best for things like, umm, blogging, I guess; kinda like a keeping a public journal for people to read.  And it posts pictures well, too.  I also have a FreeWebs, or w/e they're called; they're better for having other people post threads and such, like a very cheap and junky version of the Chatterbox.  Idk, I never seemed to figure that blog out...  Personally, I'd use Blogspot if I were you. :) Bloggers can actually get more artsy and everything than most people would think is possible for Blogspot.  'Tis a good site.