Neil Young. WAY overrated. Average lyricist. Poor singer. Mediocre guitar player! He comes across as an expert on recording fidelity, but can't tune his fucking guitar! He will always be that "slightly out of tune guy" in harmonies with other great singers that often have a certain magic. Great, keep him as a turned down rhythm guitarist and a backup singer.
Brad Delp. You cannot possibly rate him high enough! He is simply the best singer in rock and roll, EVER!!! Every voice you hear on a Boston album he sang on, was him alone. By reports, he was mostly a 1 take wonder in the studio!
I can understand arguing my most underrated pick, as there are other KILLER singers in rock. But you are a deaf mofo and possess HORRIBLE taste if you argue my overrated choice.