I agree that we stop the comparisons.
But you aren't doing that.
Lets be real Perk has been owned by just about every player in the league at some point and a lot of them more often than not.
Kaman, Bogut, Bynum, Gasol, Lopez, Howard, Lee have all had there way plenty of times against Perk and those are just off the top of my head.
So just because he was a "team" guy and did the "dirty work" and had a few decent games against Howard (who previously has been inept in the post anyway) that he is a game changer defensively.