actually there is only one major scale. what you are thinking of are modes within that scale, ie. you can switch from the key of A to E by using the Lydian mode, playing the major scale, just shifting the base note up.
as for whoever said i have a rookie-ish oppinion, ive been playing for a good 7 years now, and teaching for almost half that time. so before you think to judge my opinion, which is actually based both on my own ability, and the ability of the students i teach, and the fact that they are actually technically as compitent, if not more, than dave, jannick, and adrian all put together, and also have a lot more heart for music.
think about that, while you probably have never played a single chord in your life (although, if you have, i apoligise), and your opinion is based purely on both sound, and popularity (FACT: everyones opinion is always slightly biased by society). my opinion is based on much deeper motives.
i agree with vic, zakk is a complete pentatonic whore. but then again thats only his playing now. hes gone pretty far downhill from the "no rest for the wicked" album (his debut), where just about all the guitar work blew me away, his aggression, and technical prowess were unrivaled when he first stepped on the scene...
on another note, i cant believe some 14 year old twerp told me that dimebag is over rated, he also did it at a trivium concert, where the band dedicated a good 3 tracks (pantera covers) to dime, and played the whole concert singing his praises...
the nerve of some people
