I'm limiting myself to the ones I've actually seen live. There's plenty of good ones already mentioned that I've never seen. A few of the best I've seen are Sammy Hagar, Steve Perry, Steve Walsh, Mark Farner, Billy Squier, Billy Joel, Bryan Adams, Bruce Dickinson.
One not mentioned but by reputation was one of the best is Peter Wolf of J.Geils Band - I've always heard he was a maniac onstage.