The Strongest character i know is Naruto, Sasuke, and gaara. they have equal strengths. and the best character is Naruto. hes Strong, up spirit, hyper, always stays true to his word, and trustworthy.
If your talking about Brawl, then the best is Metaknight. Only because of the versatility has has. For one he's lightweight and fast. All of his moves come out within one or two frames so u have the...
I think there all great in their own special way..
For Example: Kei is really smart and always teases Hikari about being ranked second. Hikari is always up for a challenge her BIGGEST rival is Kei....