[Ed sighs at this question. It's a difficult one.]
There are some from my world who deserve to be behind bars, far more than even I do. I can think of a few, some who aren't exactly human.
Out of selfishness? I'd want my brother Al here. But Alphonse is so good and pure and whole that I doubt he'll ever be brought to this place. Just the same, the Brigadier General Hughes would be nice. I could put up with his crazy photos of his daughter Elysia and him whining about not being with Gracia if I knew it meant that he was alive again.
Or...Nina. I don't think Acumen will ever bring a child here, especially one so innocent as Nina. But if bringing her here could save her from the fate that her own father delivered to her, then that's what I'd ask for. No one, not even a homunculus, deserves the fate that fell over Nina.