Suggested by Sonic Kemura is one of those characters who was never going to develop into a fan favorite. It just wasn’t going to happen because there isn’t really anything likable about him. He was written out of the show pretty quickly but got a few duels before then. One such battle was against Genma and I just don’t think Kemura should last all that long against him. Genma’s cards are just better than Kemura’s and that’s all you need to know. Genma wins.
Suggested by Sonic Silver Dragon Adelaide has a pretty cool design and isn’t afraid to get up close and personal. That being said, I don’t think he will be able to handle Genma. Genma has his iconic Duel Sieger which is a monster so large and vicious that it can go toe to toe against just about any monster in the game. Genma has other monsters as well which will help him press his advantage. As strong as Adelaide is, he can’t hope to stop an army of monsters. He is simply outmatched by their combined efforts. Genma wins.