Rex Kern doesn't hold many passing records at Ohio State, largely because of the era he played in. Yet, he is viewed as one of the best signal callers in school history because of the amount of games he won.
J.T. Barrett also won early and often in his career, breaking the majority of the passing records at Ohio State. However, Barrett came under fire from the media and fan base during the final years of his Buckeye career for a multitude of reasons.
The two quarterbacks clearly both have their spot in Ohio State history regardless of what the bar talk (or online comment sections) about them might be.