Nile was interesting to me a couple years ago when I first heard them. Now its just boring. Same stuff over and over again, repeating what they did once-reusing rejected riffs or modifing past ones. I dislike the vocals-medicore and monotonous. That however is just my opinion though.
Dying Fetus Killing on Adrenaline and previous is pretty good. Still the hardcore influence but a shit load more interesting and so much more fun to listen to. Recent stuff is just boring and less attractive. They wore down what the had and the hardcore influence is just way too powerful. However some songs have some good technical moments. Ill listen to the newer stuff time to time.
However Im more of a Death.grind-brutal death-and gore grind fan myself