Two of metal's biggest bands, both at arena level and both have headlined festivals in the United Kingdom – Within Temptation headlined Bloodstock in 2015 and Avenged Sevenfold headlined Download this year.
Here's how they stack up...
Genre: Symphonic metal
Biggest Song: Mother Earth
Most Likely To: Let us burn
Genre: Heavy metal
Biggest Song: Hail To The King
Most Likely To: Embrace prog rock
Who do you want to win? The poll below is open for 24 hours. Go go go!