Really, I haven't found any amazing rants from LiveJournal. I want anger, and I want innovative language, and I want something fierce. On LJ most of the rants are just... I don't mean to offend anyone, but lame. I see LJ as a social network of narcistic depression, and the rants here aren't that fantastic.
However. there's one person whose rants never cease to amaze (and amuse) me. Exclamation mark abuse, caps lock abuse, and so forth. It's not just one rant but her entire journal is full of
exclamation marks rants.
Most of my favorite rants are, however, from a Finnish site, IRC-Galleria. The average age of a user is about 20 years, but the majority of users are teenagers. Their rants are the most amusing ever.
My favorite ranter, however, is a 22-year-old woman. She's a tad racist, chauvinistic, innovative with language and her vocabulary never ceases to amaze me. She has got several penalties on the site, and I guess at the moment the situation is that her profile will be totally executed if her rants include something of racist nature in the future.
It's not that I agree with her, but I love the language she uses.