Fear Factory ARE gash mate! For me - Morbid Angel are a band I find very tedious. I also don't really dig Kreator, every time I hear their stuff it makes zero impression and I don't know why. I've seen them live a few times too and not got into it at all.
Haha! Extreme Aggression is okay, it's got some good songs, but in comparison to Pleasure to Kill, it's very clean and easy going. Perhaps I was a bit harsh on the few albums after Pleasure... but to be honest, they're all very nice in comparison.