Suggested by iKnowledge Solomon Grundy is definitely a strong fighter, but he’s got nothing on Yusuke. Yusuke’s power was already enough to take on high level demons like Toguro and that was before he tapped into his own demonic energies. Grundy may be nearly immortal, but he’ll definitely be feeling Yusuke’s attacks. I don’t think he will be able to stand up to them for very long and will ultimately be doomed to go down. The difference in speed is also something he’ll need to watch out for. Yusuke wins.