The last two Slayer albums sucked in my opinion!!!!!!!!!! What I've heard by Kreator wasn't very good either. I have "Darkness descends" by Dark Angel and I can't really find anything interesting on that. It's not bad, but it's not good either.
I must admit that I can't find that much thrash that is good either. Machine Head's first LP was superb and I also like Pantera (although their newest record was pretty weak). Slayer was once my favorite band, but I have in a way gotten tired of them. I still think their stuff up til '94 (including "Divine intervention) is good, but in a way I don't really "need" to listen to their shit anymore and when they release crap as "Diabolus in musica" and "God hates us all" I don't get encouraged to listen to them again. I have sold the stuff I had by them and I think that if I was to buy any of their records again I would play them a couple of times and then it would just become a filler in my collection.