The only ones i listen to much these days: Sylosis - Conclusion of an Age Unearth - The Oncoming Storm
Coalesce Integrity All Shall Perish The Red Chord Between the Buried and Me The Dillinger Escape Plan Botch Converge
Which is funny, because I bought this on your recommendation in a momentary lapse of sanity, and it only serves to reinforce my impression that your primary interest in metal is as a weightlifting soundtrack.
second Raunchy + Soulgate's Dawn. I <3 Eurocore...more good stuff: As We Fight Heaven Shall Burn Crossfaith
Not really metalcore but I guess they're related enough: They also kick the fucking rape out of stuff.
Chimaira. They're actually Groove Metal now but their sophomore album is Metalcore. Their other albums, minus their debut, are much better though. I haven't heard much of them but Walls of Jericho are pretty good.