wilder or povetkin: who was greater?

[daggum]

resume:
povetkin: 4 top 10(ring) wins...chambers, chagaev, whyte, perez
wilder: 3 top 10(ring) wins...stiverne, ortiz...and ortiz

ko power:
povetkin ko'd 2 out of 8 top 10 opponents
wilder: ko'd 2 out of 8 top 10 opponents

the 2 biggest punchers ever? in the same era? what a time to be alive