“Blasphemy And The Master” vs. “Toxicity”: The Hell track is kind of a mess, but it’s never boring, while the SOAD track has super-annoying vocals and a bad chorus, despite some nice guitar bits.  Not a fan of either track, but sorry no5pambot, I’m going with @srfc’s nominee here.  
Winner: Hell - “Blasphemy And The Master”
“Into The Lungs Of Hell” vs. “Refuse/Resist”: Sepultura sucks while Megadeth rocks.  This would be a complete no-brainer even if it weren’t for own-nominee bias.  Congratulations 
me, meet the real me.  
Winner: Megadeth - “Into The Lungs Of Hell”
“Knightrider Of Doom” vs. “Halloween”: Rhapsody pays the Fabio Lione tax and loses hard to Helloween here.  Congratusorrylations, 
@JudasMyGuide, but Bogna5MartGidget’s nominee takes this one.  
Winner: Helloween - “Halloween”
“Carry On” vs. “Metropolis, Part 1: The Miracle And The Sleeper”: The Angra track is a mixed bag while the Dream Theater track is excellent.  Sorry, 
@Black Bart, but DJ JooseCameOn’s choice takes this easily.  
Winner: Dream Theater - “Metropolis, Part 1: The Miracle And The Sleeper”
“Stand Up And Shout” vs. “Tornado Of Souls”: The Dio track is pretty good, but the Megadeth track is excellent.  A very easy call for nogmideo5’s nominee.  
Winner: Megadeth - “Tornado Of Souls”
“Medusa” vs. “Dante’s Inferno”: Not a fan of either track, but while the Anthrax song is a very mixed bag, the Iseditionist Earth song has more memorable parts, even though it runs way too long, has patchwork songwriting, and I am not enamored of Matt Barlow’s voice.  Sorry, 
@The Dissident, but non5eos’s choice edges yours out here.  
Winner: Iseditionist Earth - “Dante’s Inferno”