There's a lot of bands mentioned on this post that I wouldn't class as metalcore, but I'm not a genre obsessive so I might not have a 100% accurate definition of metalcore.
I'm gonna go with KSE and Unearth as definite metalcore bands, and Trivium, Bullet For My Valentine, God Forbid and Lamb of God as "dubiously metalcore". I'm also gonna stick in a vote for Shadows Fall, The Haunted and Soilwork as just being kick ass bands.
At the end of the day, does genre REALLY matter as long as you like the music?
I'm gonna go with KSE and Unearth as definite metalcore bands, and Trivium, Bullet For My Valentine, God Forbid and Lamb of God as "dubiously metalcore". I'm also gonna stick in a vote for Shadows Fall, The Haunted and Soilwork as just being kick ass bands.
At the end of the day, does genre REALLY matter as long as you like the music?