I really do love my metal, so I'll just go ahead and namedrop a bunch of the bands/genres I listen to.
My most favourite genre of metal is straight up progressive metal, like Dream Theater, Ayreon, Devin Townsend and Cloudkicker. I also love some other harsher prog metal, like Meshuggah, Disillusion and Opeth. I'm also currently on a huge post-metal/sludge metal binge; I've been listening to a lot of Isis, Dirge, Long Distance Calling, and Ashes and Iron lately. There's also a lot of eclectic avant-garde metal in my library, like Dog Fashion Disco, SikTh, maudlin of the Well and Diablo Swing Orchestra.