Now that is one sick top 20. Damn classics in there. Not sure if you are taking suggestions, but from that same period you should check out these if you haven't already:

1. Demilich - Nespithe
2. Thanatos - Emerging From The Netherworlds
3. Timeghoul - 1992-1994 Discography [Compilation]
4. Theory In Practice - Third Eye Function
5. Section Brain - Hospital Of Death
6. Afflicted - Prodigal Sun
7. Hellwitch - Syzgial Miscreancy
8. Atrocity - Todessehnsucht
9. Polluted Inheritance - Ecocide

Also, I'm sure you have checked them since None So Vile is in there but Cryptopsy's first album is also amazing. Even their 1998 Whisper Supremacy album is great.