I was thinking when you have guitar players like Slash & Synyster gates, etc. Obviously speed wise and possibly theory wise someone like syn or Guthrie govan have the upper hand. But then you have someone like slash, who, is Slash and he cant be rivalled for obvious reasons. So what sets these guys apart? We all have seen the polls where people vote for the best guitarists but how can you compare someone like slash to syn, or Guthrie govan?