I agree with you about Jackman's distinctive voice and also that he and Michael Crawford can't play every role.
Crawford sounded very odd to me when he sang (he still does). But his voice was pure magic as the Phantom, and I've never seen or heard anybody else come close to what he was able to do live on stage. (The closest is Ramin, BTW, who understands that at times "less is more" and allows himself to get all thin and whispery. So effective!) Most actors over-sing the Phantom, and lose all of the mystery and danger as a result. They sound pompous and loud, though.
I think Hugh would do best having a show written for him and his specific voice. Give him lots to belt in his upper register. He sounds great up there! No "Bring Him Home" numbers, though, or "Music of the Night." He can't do it. And that's fine by me. He can do so many other things well (excellent actor, movie star charisma, and great belt voice, etc.).
"Jaws is the Citizen Kane of movies."
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