I prefer Kreator live than on disc. If I listen to their more current stuff it's usually that live disc they put out a few years back. Enemy of God was good too. My favorite of theirs is a toss up between Terrible Certainty and Extreme Aggression. I went through a phase when I was around 16-17 years old of really worshiping Mille, I had the bullet belt, green army jacket, sleeveless Endless Pain shirt and everything. My harsh vocal style basically came from singing Kreator covers back then.
Thrash metal in general though is the music which didn't survive well for me over the years. From 1986 through the early 1990s I was a thrash maniac. But now honestly I rarely get the urge to listen to it much. I have certain favorite discs that will always stand the test of time of course. I used to listen to stuff like Destruction, Nuclear Assault, Sodom, Kreator, etc., on a daily basis. Now it's rare that I can even make it through one entire disc in one sitting. I don't think the music sucks it just doesn't interest me much anymore. I think I had a connection to it when I was young and it suited my attitude and mindset, but I just don't "feel it" anymore.