These two bands have both been hailed as the most extreme of their generation. Though residing in different genres of metal, thrash and grindcore, both acts cranked up the intensity level of their respective genres while somehow churning out a product palatable for the metal masses. We're looking to find the best 21st century metal album in this March Metal Madness tournament. Could one of these two be given that distinction?

The almighty Slayer are known for penning religious themes to strengthen the impact of their evil brand of thrash. In the vein of 'Hell Awaits' and 'Reign in Blood,' Slayer were able to shock in the 21st century with 'God Hates Us All.' The simple title wields a powerful kind of blasphemy, and the album itself contains gems such as 'Disciple' and 'Bloodline.' As if the sentiment of 'God Hates Us All' wasn't impactful enough already, the record was released on Sept. 11, 2001.

Grindcore phenoms Pig Destroyer have unleashed many masterpieces over the last 17 years. The favorite PxDx album is a constant argument amongst fans, but we've chosen 'Terrifyer' to represent the band's 21st century impact. 'Terrifyer' was a significant progression from 'Prowler in the Yard,' beefing up the production while composing ridiculously violent tracks such as 'Towering Flesh.'

Slayer's 'God Hates Us All' or Pig Destroyer's 'Terrifyer'? Vote for your favorite 21st Century album in the poll below!

(This poll will end on Sunday, March 9 at 11:59 PM ET. Fans are able to vote once per hour, so keep coming back to make sure your favorite album wins!)

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