If you like black metal, there are plenty of top-tier bands at work right now.
Deathspell Omega is the best that I've heard. If Kenose and the other lengthy songs they've released recently are an indication of what's to come next, they are on the verge of releasing the album of the decade.
Drudkh has three great albums from the past four years, the (arguably) best was from this year. Apparently another is on the way soon. Hate Forest is quite good as well.
Nokturnal Mortum's Weltanschauung from 2005 was outstanding. Completely fresh sounding.
The USBM scene. I haven't heard all the bands yet, as I'm still working through the rest of Xasthur and Leviathan before digging into Nachtmystium and others, but these are all apparently at the top of their game. A project like Twilight has tremendous potential, as well.
Agalloch, duh. You'll find plenty of discussion of them here.
Isis. Excellent compositions and songwriting. Each album has been better than the last. The new one should be an album of the year contender.
Akercocke. Nothing groundbreaking, just very solid death/black metal songs with good production and some progressive elements.
All the above have done really good things within the past two years or so, and appear to be continuing to put out quality material.