in that category i’d like to vouch for Brodequin and Amputated Genitals. both respective debut albums are modern death metal classics with more or less intelligent songwriting, too, once you decipher them. i especially enjoy the former’s medieval torture instruments-theme.
https://www.youtube.com/watch?v=sAeE27TXrVQ&feature=related
https://www.youtube.com/watch?v=z2J1GtXoiyc&feature=related