I would have to say a combination

Sonic Colors: His goofy and fun-loving self.

Original Sonic: Whenever you stood still, he always looks at you like "Why am I not moving?"

Black Knight: He nearly killed himself at the end, trying to do the right thing.

Sonic the Hedgehog (Archie Comic): He was really sarcastic and made good jokes, while still being pretty stubborn and not caring about what others think of him.

I agree with you more than I like perpperoni pizza Kbaily. Which is alot by the way. But, if they want to make a good Sonic game, then they should have more variety. I mean, playing as Sonic is really fun, but playing him all the time makes the games pretty much the same throughout the game(unless there are unlockable upgrades). One thing that i've heard about SBK is that when you unlock characters, they can be played optionally. That is a very good idea, insted of being forced to play as every character to unlick the final stage. But at the same time, they shouldn't make anything slow down. We buy Sonic games because we can control something that can run at 300 mph, and has feet. Not some race cars that explode if you tap a wall while going to fast, but a small, manuverable object that can bounce off, and keep on running, jumping, and fighting to get to the end. Also something that we can use off-road and can destoy killer robots while running at the speed of sound. That's why we buy Sonic...

...Man, I sound like my brother...