I'll start out by saying that my favorite genre right now is Power Metal. Mainly for its great riffs and solos and high-powered clean vocals. These days it's Primal Fear, Grave Digger, Freedom Call, DragonForce, Brainstorm, and eventually bands like Gamma Ray, Stratovarius, Rhapsody, and Blind Guardian.
I also like Progressive Metal a bit, of bands like Pagan's Mind and possibly Threshold in the future. Of course, Iron Maiden's an old favorite, but they'd fall under NWOBHM.
I like a little Death Metal these days, with bands like Dark Tranquillity, but that's it. I ust find the growling vocals to be a bit silly most of the time. The only thing that saves DT for me is their melodic musicianship. Bands like Cannibal Corpse I just find extremely ridiculous. Ironically, back in the '90s, I was big into Death metal, with bands like Obituary, Morbid Angel, Death, and Deicide.
The only Black Metal band that I'm interested in getting into is Dimmu Borgir. Only because of their symphonic backing parts.
I also like most of the old school thrash bands from the '80s, Megadeth, Overkill, Testament and so forth.
Oh, I forgot...the one metalcore band I like is Trivium. Despite the haters, they're a pretty good band for as young as they are.
How 'bout you?