Much as I think Peter is a very astute guitarist... Mike has, to my ears, a musicality about his solos that I don't think I've ever heard matched. Sure, he's not a technical wizard like Joe Satriani or John Petrucci... but Mikes solos speak to me. They sing. They are beautiful. Peter must be commended though, for having a good sense of pace. We can always rely on Peter to throw in a solo at a really pacey part of a song and keep it going just right. I think that they're styles are very different and easily distinguishable. But I have to say... Mike IS the superior musician... there's just no way around that.
Peter still owns though.