Not a bad comparison as Arians once said about Josh that he's basically Cam Newton with a better arm. I do know one thing though. Josh would've jumped on that fumble if he was in Cam's shoes in that Super Bowl.
I think there's a lot of Favre and Roethlisberger in him too. Even Daunte Cullpepper in his last years with the Vikings. There's no perfect comparison. To be fair though, I thought if we drafted Josh Rosen he'd be our Eli Manning so what the heck do I know.