Yet another artist who's voice I think has held up pretty well despite a ton of abuse is Lindsay Buckingham. Chas saw FM just recently so I'd be interested in his opinion on that but the Youtube stuff I have seen of Lindsay, he still sounds great to me.
The solo special he did a year or two ago showed that his voice is still strong and flexible. He sounded great! His guitar playing wasn't bad either for an old banjo picker! :cheer: