I don't have enough experience to give a definitive answer. I have heard speakers from all three makes, but there is a lot of variation.
But that's never stopped me from giving it a shot....
I haven't heard anything special about contemporary Polk speakers, which appear to be made for the home theater market. Scratch the Polks. I have heard contemporary Focal, and though there are a lot of good things to be said about them, I found them to be a bit bright and revealing of source. Exactly what you don't want in a Rock & Roll speaker. I think you will find it painful to rock out on these speakers. PSB is a great company with a consistently good reputation and a very neutral sound. I have really liked every PSB speaker I have heard regardless of where they sat in the line up. Of the three, I believe that PSB will be your best bet.
Have you considered Energy speakers? I have been hearing lots of good about them lately...