OH TEEFUCKINGHEE. Heartwork, only has one good song, IMO. But Slaughter Of The Soul is excellent(while not the best ATG album). Also of note is that I made this account back at the beginning of 2002. Sorry that my tastes have evolved.
But funny thing is, even two years ago, I thought that Heartwork was an overrated piece of shit.
Carcass, without a doubt. Especially since, in my opinion, only made one shity album, namely Swansong. Were as ND made a few stinkers. That aside I still prefer Carcass because I believe their song structures and themes were better.
Carcass just narrowly scrapes it for me... Scum, Harmony Corruption and Order Of The Leech are fairly regular fixtures on my CD player, but they're nowhere near as frequently played as Symphonies Of Sickness.