10: Miss May I
Being newcomers to the genre, Miss May I have proved themseves a worthy band, with some really good album releases such as Apologies are for the Weak.
9: I Killed the Prom Queen
One of my personal favorites, not many people would argue that they are indeed one of the best.
8: Parkway Drive
Well, since Australia's I Killed the Prom Queen was number 9, lets put more Aussies on here, since they know how to make some good Metal. No, but really Parkway Drive is an amazing band, and most of the
7: Unearth
Hailing as one of the creators of the metalcore genre, and defiantly one that brought it to popularity, is Massachusetts Unearth
6: Trivium
Also considered thrash metal, Florida's Trivium have been a major contributor to the genre, as well as releasing numerous, High rated albums.
5: All That Remains
Being the "leaders" of the metalcore genre in general. They have stood the test of time, although some would argue their more recent albums are not as good as their old stuff. Still, without them, metalcore would not be where it is today.
4: Bleeding Through
Once the biggest West Coast metalcore act, Bleeding Through fell through the cracks later on and now most kids have no idea who they are. However, they are one of the best metalcore bands out there, and fans of them know that they will forever be the best. Long Live Bleeding Through!
3: Shadows Fall
Another Massachusetts native band, they gradually left the genre to pursue more thrash oriented style, but they still left in impression the metalcore genre that is still seen through a bunch of bands
2: As I Lay Dying
After Tim went on trial and got a pretty hefty prison sentence, AILD died. The members went on to form a new band (which is actually pretty good) the amazing As I Lay Dying went away without a whisper to be heard. However, they are still one of the best and some may argue THE BEST metal band.
1: Killswitch Engage.
Have to give it to them. They have been around since the metalcore genre originated. They also have stayed consistently popular and their albums have changed little. With the exception of Jesse leaving then Howard replacing him, then Howard leaving and Jesse re-replacing him. Either way, They are one of the best.
Well there you have it. The best of the best. Keep in mind as usual there are many other REALLY good metalcore bands out there that should be noted. Go check them out, do some research.