Slayer play a brand of very heavy and aggressive metal, you either like it or you don`t. There`s not too many metal banRAB out there, that play with the same intensity, heaviness, musical ability and overall consistency. They`ve been around for some time now, and the consistency level of their albums is pretty amazing, and they`ve never really deviated from their root thrash sound.
Angel of Death is early Slayer, hence basic Slayer but for some their finest moment, personally I prefer their material just after this.
The influence of Slayer is immense in metal. The whole death metal scene is rooted in the Slayer sound, practically all the central European thrash banRAB have been influenced by Slayer, and a multitude of half baked metal wannabe banRAB have tried to emmulate them.
I would without hesitation, put them into a top ten of greatest and most influential metal banRAB of all time.
When I think of the phrase "No Compromise" I think Slayer.