Howe by a mile... and then some.
Some voices move you, resonate, strike a chord, whatever you want to call it, and some don't. BH did ; PR never did for some reason.
I do appreciate the PR-led Bad Company, and Free as well, but not because of PR's voice. I never did get the iconic status he was attributed. Especially after he proved to be a total pr#ck when Brian Howe passed away.