@ Rayzac
When Metallica was still taking its baby steps it had orginal members.
Dave Mustaine - Lead Guitarist, Backing vocals
Lars Ulrich - Drums
James hetfield - Rhythm guitarist, Vocals
Ron Mcgovnney - Bassist
But as time changed so did the band, Dave Mustaine HAD a big alcohol problem, so lars and james were pissed ands kicked him out he said,
"What no second chance?"
He made all of the songs on kill 'em all (with help from james and lars, BUT HE DID MOST OF THE WORK!!) and said why don't we kick metal up a knotch or five? so HE invented thrash metal.
Immediatley after his ban, (lol, "ban"
Metallica had to get a new guitarist and Kirk Hammet from Exodus tried out and made it.
Now Who was better in Metallica??
IT'S YOUR OWN OPINION
My opinion is Dave Mustaine.