this has been an awesome year personally, so I'll list my top 20 albums. (tl;dr post)
20. KADDISFLY - SET SAIL THE PRAIRIE
neo-progressive rock / post-hardcore
pretty music with fairly good lyrics. the vocalist has a slightly whiny, annoying voice, but it's bearable. overall good, however, it can be shortened.
19. BLACKFIELD - II
alternative/progressive rock
Steven Wilson of Porcupine Tree's side project with Aviv Geffen. their second album is an (imo) improvement over the first one. the lyrics are quite depressing and the music is sad.
18. KAMELOT - GHOST OPERA
symphonic power metal
not nearly as great as their previous album, The Black Halo, but it is still a standout in the genre.
17. EPICA - THE DIVINE CONSPIRACY
symphonic metal
I really didn't like them before this album. don't be turned off just because the vocalist is female and it is tagged as "symphonic metal"! it may be a bit cheesy at times, but this is certainly a more mature release than most of the stuff in the genre.
16. ELVENKING - THE SCYTHE
power metal / folk metal
cheesy, but fun. some tag this as melodic death metal, however, I don't know where the fuck they are coming from as there are probably 2 growls in the whole album.
15. VINTERSORG - SOLENS ROTTER
black metal / folk metal
catchy, well-produced, crisp-sounding folk-inspired black metal. awesome, and fairly accessible.
14. THE BLACK DAHLIA MURDER - NOCTURNAL
melodic death metal
fairly simple melodeath, however, it is catchy and fun to listen to. probably better than their previous album, Miasma.
13. SONATA ARCTICA - UNIA
melodic power metal
it's sonata arctica... but with a more melodic edge. they sound less cheesy and more sincere on this album. I do not enjoy this one as much as Winterheart's Guild or Reckoning Night, but it is certainly good stuff.
12. HIGH ON FIRE - DEATH IS THIS COMMUNION
sludge metal
High on Fire maintains their heavy and sludgy sound on this album. just as good as Blessed Black Wings probably.
11. RUSSELL ALLEN & JORN LANDE - THE REVENGE
power metal / progressive metal
the vocalist from Symphony X's side project with Jorn Lande. sounds fairly similar to SX and the album follows a fairly similar formula, sans the epic. worth it for the closing ballad, When Time Doesn't Heal alone.
10. AMORPHIS - SILENT WATERS
progressive death metal
I'm not going to say that this matches the genius of their sophomore album, Tales From the Thousand Lakes, but it is probably more accessible and less death metal. awesome stuff.
9. MORS PRINCIPIUM EST - LIBERATION = TERMINATION
melodic death metal
fairly straightforward for melodeath, but it is unbelievably catchy.
8. MANEGARM - VARGSTENEN
folk metal / viking metal
it's a damn shame not too many people have even heard of them. Manegarm is one of the best folk metal bands out there. this album is well-produced compared to their well-received Vredens Tid and has a lot of memorable melodies.
7. ENSIFERUM - VICTORY SONGS
viking metal / melodic death metal / folk metal
Ensiferum is pretty cheesy when it comes down to it, but they are still awesome and fun to listen to. Victory Songs does not match their self-titled and has a different vocalist and lead guitarist, but that does not detract too much from them. the vocals are more growled instead of rasped and the guitars seem much thicker.
6. DARK TRANQUILLITY - FICTION
melodic death metal
the masters of Gothenburg metal release another solid album. compared to other melodeath, Dark Tranquillity always have a more sincere delivery. even though the vocals are harsh, they are fairly easy to get in to even for non-death metal fans.
5. INFERNAL WAR - REDESECRATION
brutal black metal / nsbm
chaotic, insane Christianity-hating black metal that is perfectly executed. this album is fast, brutal and amazing. not recommended unless you are already into this genre somewhat.
4. MAXIMUM THE HORMONE - BUIIKIKAESU
funk metal / alternative metal
awesome japanese funk metal with 3 vocalists (clean and male, harsh and poppy female vocals). catchy and fun as hell to listen to.
3. MOONSORROW - VIIDES LUKU - HAVITETTY
folk metal
pretty much the best folk metal band. their music is very heavy, layered and complex and the songs are very long (~30 and ~26 minutes on this album). recommended 100% for anyone with any interest in folk metal. this definitely lives up to the name of Kivenkantaja and Verisakeet.
2. SYMPHONY X - PARADISE LOST
progressive metal / neo-classical metal / power metal
this album has a heavier and more serious sound than previous ones, which is maybe why a lot of people were turned on to them when the album was released. really, every track on this is awesome... especially Paradise Lost, Seven and Revelation.
1. BETWEEN THE BURIED AND ME - COLORS
progressive metalcore / technical metal
holy shit, album of the fucking year. over-the-top, theatrical and very powerful. BTBAM is definitely a bunch of talented musicians. I recommend this to any fan of prog metal even though there are 95% harsh vocals... the everything is executed perfectly.