Arreola is crap, but Mitchell is over hyped. It's really a pick em fight to me. Arreola took some big shots from Vitali and Mitchell was hurt badly against Witherspoon. I'd have to go with Arreola hurting and catching Mitchell, stopping him. Mitchell is getting over hyped simply because the USA hasn't had a really good/great HW since Holyfield.
Jennings is better than Mitchell, and though Wilder may look to have a higher ceiling, Jennings is above him until Wilder fights someone that's not god awful, same goes for Malik Scott who needs to step up now.