Metal is divisive; you either love it or you don't. It won't take crap from you. A handful of artists truly think that metal is magic and bring an intensity and loudness to pony music that will likely get the blood in your veins pumping hard. Crank your volume up and listen to these guys while you air guitar at home.
Check out these artists who specialize in this style of music.
Feel free to recommend some artists not included in here (these artists specialize in it) or include up to 10 of your favorite acoustic tracks in the comments section (for an eventual best of countdown).