Youre right it gives a lot of guitar players, how can play better than emppu but in my opinion is emppus style to play guitar better because he and his playing is so magic. Out of this reason you cant say who is the best guitar player.
The singer is great, to be a finnish hardrocksinger at least! You think about Kotipelto beeing the one from Finland, but this guy really in touch with the hard rock singing and feel, and sings with all his voice, not the falsettoshit in the upper regions! Good stuff!