Perry’s argument turns on a equivocation of the meaning of the proposition P=“eternal creaturely existence of hell is compatible with God’s perfection”. Still, that equivocation apart, don’t both the hellist and hopeful universalist agree that P is true? After all they both agree that it is possible that in fact some creatures will eternally exist in hell.
I agree. Hopeful universalists and hellists are both committed to P--and in exactly the same sense. But that then raises the question of how and where hopeful universalists differ from hellists in their beliefs.
This, of course, generates the broader question of how best to distinguish species of hellism and universalism. In God's Final Victory (hopefully available in paperback very soon), John Kronen and I offer a strategy for doing so that I think is quite effective. But there are various ways to make the same distinctions--and it seems to me it might be helpful to use the point of agreement between hellists and hopeful universalists, noted by Dianelos, as a springboard for making some of the same basic distinctions in a fresh way (especially since John and I did not devote much attention to hopeful universalism in our book).