I don't know if this band has been mentioned on this thread yet but I just happened to come across them today. They are called Memphis May Fire and they combine the metalcore and post-hardcore genre with southern rock. I gave a couple of their songs a listen from their album that was released last year and I was impressed. The song, Ghost In The Mirror
stood out to me; I thought the screams and clean vocals worked well together and the way the track built up towards the end with the breakdown was great. You can check out the video to the song below as it's off the Saw VI Soundtrack.
Also, I've been listening to a bit of Sky Eats Airplane and I'm loving their electronic metalcore sound. Some really awesome tracks that I've listened to so far.