This is gonna be a fun thread.
Ill name a few now and more as the year progresses and more releases.
Arch Enemy Khaos Legions - MY FAVOURITE 2011 RELEASE, brilliant album from front to back, songs are very structured, very focused in sound, and its the sort of death metal sound I expect
Trivium In Waves - Delivered the goods, more harsher vocals which is good, the band needed to go heavier and did so with this one.
Deicide To Hell With God - Another album that I love still, very focused sound and effort with this album.
Amon Amarth Surtur Rising - First album I bought of theirs and its a favourite.
Devin Townsend Ghost - Very relaxing music, a very chill sort of atmosphere and a fantastic album.
Autopsy Macabre Eternal - Very heavy album and deserving of praise.
Children of Bodom Relentless Reckless Forever - Much better sounding album then Blooddrunk, the band sound more focused and heavier in this album.
Sepultura Kairos - Fantastic release, often overlooked as a 2011 release.
Within Temptation The Unforgiving - Brilliant front to back, this symphonic metal band has not ceased to amaze me and delivered a special album.