Although Vivian Campbell was to Ronnie James Dio as Randy Rhoads was to Ozzy Osbourne, the current Def Leppard player was unable to score a win over Dream Theater's John Petrucci. Dream Theater and Petrucci claim a fan base unique to the metal realm thanks to both phenomenal songwriting skill and technical prowess. Can Petrucci make it all the way to the finals?

Claiming a runaway Round 1 victory over Meshuggah shredder Fredrik Thordendal is the undisputed master Eddie Van Halen. Few guitarists carry the godlike aura of Eddie Van Halen, who was recently named the greatest of all time by a Guitar World poll. Will the honor of that poll carry through to our Greatest Metal Guitarist competition? Only the fans carry the power to decide.

John Petrucci or Eddie Van Halen? Cast your vote for the Greatest Metal Guitarist in the poll below! Voting for this round closes on Sunday, July 28 at 11:59PM ET. Fans can vote once per hour, so keep coming back to make sure that your favorite metal musician wins!