[Darko]

Tough Guy:
Too Pure To Die, Swear To God, (NEW) Throwdown, Sworn Enemy

The Promise and Comeback Kid = amazing old school hxc revival stuff.

Metalcore bands that will change your mind about the genre:
This Present Darkness, As Hope Dies, Darkness Remains (both from WV and they're amazing).

Cheesy ass Saves-The-Day-left-their-lyric-sheet-at-our-practice-space metalcore - 7angels7plagues, Misery Signals.

I also find some good ol' Hatebreed doesn't hurt every so often.

I can give you more if you want, though I havent really listened to hardcore much lately. More into metal now.

Oh, and as always I have to plug End This Day (defunct).