Look at
http://ranks.sextracker.com and
http://www.porngraph.com/toplist.php
#1 TheHun 1,952,715 / 16,196,202
#2 WorldSex 1,353,831 / 8,289,825
#3 PicHunter 783,681 / 1,376,365
#4 AL4A 780,727 / 4,457,567
I am not sure AL4A is happy with these figures. Isn't it due to huge amount of hosted galleries in his list?