I just got into Christian metal. My favorite is August Burns Red! They really have a good sound with a unique style. I used to be into punk rock mostly, and I listened to some metal as well; my favorite was Cradle of Filth. I hate them now, but they were alright. I just recently started getting back into Christian metal now because of my anger for wickedness and evil people, who persecute me on a daily basis and commit wickedness that I hate. They are the fuel feeding my internal fire, which is now burning out of control against this evil disgusting generation! And then they tell me that I'm not alone or that I'm not the only one that feels this way, but who are they to tell me that when they're the ones that do these things and persecute me so harshly? The difference between when I used to listen to metal and now, is that my anger is now directed somewhere else, but now at the right place; against Satan and all of his followers. I will not get into Satanic death metal or black metal anymore, they're abominations and I don't see what they're so angry about.
I reccomend "Redemption" by August Burns Red.
August Burns Red (Redemption) - YouTube
I also like As I Lay Dying and Demon Hunter.