All six eventually knock Jones out. Jones was an excellent fighter at 168 and 175, but his career at heavyweight was a complete farce. Ruiz wasn’t a real champion and Jones had a chance to fight Vitali to prove his title wasn’t a trinket, but Jones backed down after saying he’d fight.
He could beat Braddock, Galento, Primo. Schmeling had too good of timing with his right hand and punched hard he lands a peach at some point and Roy goes to sleep. Sharkey is athletic enough to compete and his larger natural size leads him to a UD Win. Baer If motivated takes Roy out.
I would pick him over Galento. Braddock & Sharkey I would favor but call RJJ a live dog Baer Schmeling Carnera I would call big favorites and would be surprised if Jones beat any of them