Captain Falcon.
I mean holy shit, this guy is a badass. Just look at that badass helmet and scarf. He wears that scarf as a defiance to society. If someone mocks him about it, he just lights his god damn fists on fire and punches them into the horizon. I mean shit, some evil asshole in a black suit thought Captain Falcon was such a badass that he made a clone of him just to double the badassery.
On top of that, he has a sweet ride. Futuristic racecar that goes several hundred mile per hour? Hell yes.
When I first encountered him in the original super smash bros, he absolutely destroyed me. He destroyed my friends. My dog. My wife. I didn't even have a wife, but he got me married and then destroyed my wife. When all other unlockable characters fought you at a nice, easy level 3, he fought you at level 10. There aren't even that many levels for difficulty. He's just that badass.
When I got him in brawl in the subspace emissary, enemies fled for their lives. If one got a cheapshot on him and he fell into a hole, he would just respawn. He wouldn't even let his teammates take his place. He's just that badass.
So yeah, Captain Falcon is pretty much the most badass person ever.