I think you're underselling Ferrari hugely. Firstly, on the OTT stuff, Ferrari was wrestling 97kg, which is significantly bigger than his college weight. Brooks has been competing at 86 kg, which is much closer to his college weight.
He was a true freshman NCAA champ at 197 lbs, which I think is a first. He's a year YOUNGER than Brooks. You're assuming regression, whereas I think stagnation is far more likely, but even then, you're basing that in lack of competition, but the Ferraris were notorious for not competing much. I think he's clearly a threat to Brooks. I wish he wasn't wrestling for Iowa, but I think you're crazy for dismissing him.
I'm picking Brooks, though.