I think that Slaughter of the Soul is indeed a perfect album. However, With Fear is still my favorite. I love Anders, but I think Alf is the reason why I side with With Fear. When he left, the sick discordant harmonies [I know that makes no sense] left as well. The guitar parts would roam, both separate entities, but symbiotically linked at the same time. Also, With Fear showcases ATG's most interesting drum/bass work. The Red laid the groundwork for this album, with songs like Kingdom Gone and The Scar, but there was just something missing: that something was found on With Fear.
But all ATG albums own \m/