I'm amazed people who haven't got the first clue about a position they oppose are nevertheless freely permitted to debate against it. Talk about tilting at windmills and erecting strawmen to burn on the mountaintop as beacons!
Aside from the interminable march of straw men and red herrings, there is the simple fact we could start with that "universalists" and "annihilationists" do NOT believe the same thing whatsoever. The annihilationist believes the exact same way people who believe in eternal torment, except for him the ultimate end is cessation of existence forever rather than roasting in agony forever. Roasted or roasting, it's still pretty much the same camp. The Christian "universalist" (Reconciliationist) believes any punitive or disciplinary act of God is ultimately part of a larger redemptive process rather than an end in itself.
In human society, spanking may be controversial for some, but the parent who spanks a child as part of loving, caring discipline, intending thereby to teach the child right from wrong and so advance its ultimate welfare, is generally seen as a good parent even if some might debate his methods. But we invariably look askance at the parent who beats a child in rage with mixed motives of self-satisfaction and exercising of that rage as being someone desperately sick and in need of intervention, at least for the child's sake even if the parent cannot be rehabilitated. Why, then, do we permit ourselves a monstrous picture of God as someone wallowing in sick pleasure at the torture of millions for His own personal gratification? If we, mere sinful humans, can clearly see such attitudes as sick and inhumane for people, why would we want to cling to some notion that God is sick and inhumane on a transcendant scale?
Look, even the annihilationists do better in this department, citing something like Ezekiel 33:11, at least, to picture God as pleading with people not to choose their own destruction .... [bible]Ezekiel 33:11[/bible] I may not agree with their annihilation hell any more than I agree with eternal torment BUT I can at LEAST respect them for trying to put the horse and cart in proper order, and depict God as one who takes NO pleasure in ANYONE's destruction, not even the "wicked"!!