He still originated as a villain (he's more anti-hero now though) and even when he's the star, he's still always comic relief.
I can think of one character who legit does avert all of the criteria, though.
-Huge ball of blubber, so I guess he's "ugly".
-Is a good guy. He's a loyal cop who just strives for justice, and people genuinely look up to him.
-While he has comic relief moments, everyone in Tekken does at times. It isn't a focus with Bob though, and he is genuinely looked up to. His quotes are generally fairly badass.
-His fatness was actually a choice - he built his body in a way that gives him as much aerodynamic, speedy, and flexible movement as any thin gymnast, but the weight from the fat and muscle allow him to hit like a truck.
-High to Top Tier character in every game he has appeared in.