Well I listen to Melodic Death Metal. Bands like Scar Symmetry , Dark Tranquility , Solution .45. They manage to create a sound that's out of this world and the instruments are awesome. Also the lyrics in their songs are very well structured and very well grounded .
http://www.youtube.com/watch?v=uq9Sh2qZNj4
http://www.youtube.com/watch?v=Ha2kqAZ73eg
http://www.youtube.com/watch?v=e7X7HpcqM3s