Prime Kovy was better imo. I know that comparing performance against the same opponent doesnt means much, but while Bivol won a wide decision, he never outclassed Pascal like Kovy did both time (against a much better pascal the first time than the one bivol faced). This for me, showed the difference in class between these 2 fighters
Yeah, Bivol is gonna be remembered as greater and most people on lower IQ forums would take Bivol due to recency bias, but the truth is 2013-2016 Kov whups Bivol's ass.