Twitter, Facebook, Blogger, MySpace or AIM

out there are about 15 billion online sites to be w/. there's Facebook, Twitter, Blogger and MySpace are the big few. Me i have a blogger, facebook and twitter not a myspace. i skipped the whole myspace phase and went right to facebook then to twitter and facebook then to twitter facebook and blogger oh yeah and aim. i almost forgot that =) well I have a question for my followers what is your favorite? Twitter, BLOGGER, FACEBOOK,aim or MySpace. also lets just throw it out there theres youtube to but who doesn't love youtube??