Techno, Tech House, Deep House are my three favorite genres to listen to. The list of stuff (beside those I just mentioned) that I like is endless though. Just check out my last.fm.
I'm not really a fan of metal though.
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I'd be better at giving a top list of tracks that were released in this year since I barely ever buy full albums these days. Also, I think that the answers to this question don't really prove much. I could name album/EP releases that I found to be the best for me this year, while they were released in say, the 80's or 90's.