I'm a fan because 1) the lyrics have so much intensity anger in them. They bring you down to your knees and make you head bang till your neck breaks. 2) The melodies from the guitars are so fast, and just so hardcore, i wanna get up and go along with the aggression and heaviness of them. and 3) The bass goes so well with the guitars and the drums, just the furiousness comes out when all 4 members of Slayer play as fast and as brutal as they can. It hits your ears in a way they haven't been hit by any other artist.

Thats why i'm a fan of Slayer and always will be.