Comeback/Reunion Albums

Ohhh

Armored Saint - Symbol of Salvation

Wow very nice, a classic in its own right!

i kind of sort of almost really like the latest riot album. idk if they ever actually broke up at any point though

I consider Tony Moore coming back in as a new "milestone", and then him leaving again and the new one with Todd another "start (even with the name change to Riot V). Hell I even like Unleash the Fire more so than Tony's contribution, great stuff.
 
Candlemass' eponymous album came as a positive surprise to me.
Yeah that's a great album. One of their heaviest too.

Mort Divine said:
Lack of Saint Vitus - Lillie: F-65 is upsetting.
I'll second this. If we're counting huge gaps between album releases than Eyehategod's self-titled deserves mention. And fucking Godflesh's A World Lit Only By Fire.
 
A few I haven't seen mentioned that deserve a mention...

Blood of the Nation - Accept
Dehumanizer - Black Sabbath
The Devil You Know - Heaven and Hell
Monotheist - Celtic Frost
Voivod - Voivod