I don't mind Decrepit Birth, though their new album is some pretty massive Death worship.
Dawn Crosby was the best female thrash vocalist, and Detente's Recognize No Authority is better than 95% of the thrash albums that people discuss all the time (Testament, Exodus, etc etc)
Deathcore isnt bad. or metalcore, or Dimmu Borgir or Cradle of Filth, or even In Flames or even Sonic Syndicate.