Yugi VS Rafael duel in a nutshell.

Simplicity in his design, adaptable to multiple forms. Bright recognizable colors to match his Plasma Poltergeist inspirations.
The Recent 3D Games giving him jittery movements like he's a living bolt of electricity moving around is so good.
How could he not be perfect?

Yes, but its also why its the best one.

Guy tells you tall tales, then you go there & you get hit with the good ol'

Plus its just kinda cool to travel around the region & find all these guys just in areas of the map, like yeah they travel the world, they stop here sometimes & do a thing.