Chazz is related to Tim Witherspoon, sadly he does not compare to his cousin.
He could turn out to be good but "Terrible" Tim was already fighting evenly with Larry Holmes in his 15th pro fight while Chazz has not made any significant progress.
A fight between Povetkin and Chagaev would decide the best undefeated heavyweight in my opinion.
Povetkin has potential but I do not think he can challenge Wladimir, his pressure style would be a handful for a boxer like Chagaev though.
Chagaev is tough but he can be outworked.
TYE FIELDS! he is a beast lol!(not really he is a loser)
dunno really the heavyweight division is so weak these days that the title of "best undefeated heavyweight" mens next to nothing erm but I guess it would be chageav because he is a "champ" and no other reason than that (his fight against skelton sucked sweaty hairy balls)