Robotnik's beating Sonic with Sonic.
My friend is ungodly good at Brawl. But my best character ( actually im starting to think Wario is my best... ) Sonic, can really turn around a fight with his final Smash. He claims it's cheap... but he's incredibly good at dodging it sometimes.
By the way, this isn't a video game forum, so no bashing Sonic in Brawl, or Brawl itself.