Solomon Grundy is pretty powerful and I would easily give him the advantage in a fist fight. The Hulk is powerful, but I really don’t see him being able to stand up to Grundy. At Grundy’s height in power, he was even stronger than Superman and that’s an insanely good feat. The one reason why the Hulk ends up taking the win is thanks to his long range advantage. He’s handled quite a few laser cannons that could deal a lot of damage to he can afford to bide his time and strike from far away. Eventually, this would prove to be enough to secure a victory. Hulk wins.
DReager1.com 
Hulk smashes Grundy.
Hulk wins, but it’s one of the closest heavy hitter matches I’ve had to officiate.
Hulk Vence pelo fato de quanto com mais raiva mais forte fica.
He is definitely pretty powerful to be honest
I may be misremembering so excuse me if I am but isn’t Solomon Grundy literally immortal