WTFDaveMustaine said:
Megadeth make better thrash music. It's fast, complex and have crazy awesome riffs.
Slayer has one or two awesome riffs followed by a ****** nonsensical Kerry King solo over the top.
Anyway I don't really have a favourite band but I'm loving Porcupine Tree right now.
I love King's approach to solo's, despite the criticism he often recieves off of fans, but they nowhere near compare to anything Mustaine or Hammett have wrote.
As for which is better, this is the quickest comparison I could find: