I have no problem with Wlad, Jennings, Wilder (should be ranked at 10), Pulev being #2, Povetkin, Glazkov and Stiverne.

But Arreola shouldn't be there... neither should Adamek or Perez. jmo....

But who else is after them?

Here is the IBO Top 100. Takam, Chisora, Solis, ranked 4, 6, 10...
Heavyweight - Top 100 IBO Rankings - International Boxing Organization

But they ain't all that either. They have Luis Ortiz at 40. I think he is more than 40. Maybe in the top 20, probably around 13-16.