I'd say almost all of Pantera's music was metal to the core! but for me also the song 'Walk' stands out as one of there best,coz its about the very essence of what Pantera and there music is about...
As for the fast and brutal track 'F*cking Hostile'.....still makes me want to go out and maim & pulverize someone after i'v heard it
'Vulger Display of Power' prolly one of there finest albums out of many!!!