Definitely an ATG, I believe Beterbiev would’ve stopped Bivol prime for prime, he’d’ve been able to go through the gears more effectively.
I don't think so, but it depends on where the cut-off is. Beterbiev is a top 10 LHW of all time, but I think he loses to RJJ, Foster, Ezzard Charles, Archie Moore, and Spinks. Billy Conn & Sam Langford, maybe, but we're going back a long way there. I'd have him anywhere between 5-10, so obviously, he's in a class with the very best. But I don't think it's a 100% guarantee with a resume as thin as his, in a division historically filled with amazing technical boxers. Once we peel back the layers, he isn't a shoo-in for H2H ATG. RJJ, Ezzard, and Spinks would've been a nightmare for Beterbiev stylistically, and I think they all would've outboxed him pretty comfortably over 12 rounds.