B.G.M. ranks all best heaviness of 2015. Literally every metal album that came out this year that is good is here and if its not then don't listen to it.
It takes brilliant musicianship to craft something so deep and expansive as Autumn Eternal, and there's no doubt Panopticon is endowed with that ability.
Isis were probably one of the most creative and original bands of all time and Oceanic is an all time classic. The album was just remastered and repressed.