How would Ray Mercer do against the current heavyweights?

IMO, Mercer beat Lewis. He would do fine, but not top3.

he would be just one of the guys, like in 90s.

Bottom tier journeyman

As least top 10, maybe 5. He could beat most, don't think he could beat Fury, but could see him beating anyone else. He had a great chin, which is very important in the heavyweight division. Probably would have won a ABC belt, if I had to bet on it.

He would hold his own, beat alot of the top 10 but did put in the odd poor performance even in his prime so maybe too inconsistent to hold him in too high regards

He'd beat most of the top 10 think he could have beaten Wilder. If Joshua fought him the way he fought Ruiz the first time it's 55-45 in favor of Joshua. If Joshua fights him the way he fought Ruiz the 2nd time Joshua wins. Fury would beat him easily

I think a few guys outpoint him