I wouldnt really say they were the technically best, i'd probably say opeth were more technical with all the timing changes and whatnot, just like dream theater. I think the sound's just a combination us lot like, n some people dont. I think theyre a really well rounded band so no one sticks out, like maiden fans know who all the band are, whereas say a racer x fan might only know who paul gilbert is or opeth fans might only know mikael, but i mean its all down to personal opinion if u dont like em fine, u have ur reasons, and i respect that, none of the trendy group at college can understand why i despise nirvana cuz apparently kurt nobrain was the greatest songwriter ever, and he COULD actually play, he was just doing it with more soul than steve vai because he got it wrong. Personally i think nirvana gave grunge a bad name and destroyed US heavy music and to an extent british heavy music.