Judai. He started out like an average toyetic hero, but he was believable. He wanted to do his best, and he didn't care if he lost. His first duel with Kaiser shows him grimmacing at Cyber End's 8000 ATK and then he instantly switches to an impressed smile. He was enjoyable, but then he started hogging the spotlight anf then he got his own special cards from space, and then he became the sex god of the franchise, and then he was the king of a whole dimension, and then he had mad HAX Yubel powers.