Haha I said that Sonic is gonna be in it because there's such a large freaking demand for it. I guess I can use my logic to predict things, and I'm only fifteen years old. IGN is made up of a ton of people, so I think at least one of them realized that Sonic's huge demand seals him a part in Brawl. Also, welcome to 8 days ago.
Additionally, I was sad to see that Little Mac is only an assist trophy. He would have made an awesome character.