What about Mortician - Stab? (Chainsaw Dismemberment)
I mean, it's easily the best song on that album. Not that the rest of it isn't awesome, it's just that Stab has THE best sample at the start; the long drawn out pauses really get the pulse racing, and then it kicks-in with their most powerful and unique songwriting moments; blowing everything away and establishing the intensity and speed that the rest of the album will follow with. It almost isn't even like a Mortician song, it's more like a bastard offspring of early Deicide and later Gravedigger, with the added electronic sensibility of Fear Factory and the progressive sense of Neurosis, surely it's an opener that is not only one of the greatest openers ever, but one of the very best metal tracks ever recorded. An all-time classic, and a song that is absolutely unspectacular and COULD HAVE BEEN PUT ANYWHERE ON ANY ALBUM AND GONE TOTALLY UNNOTICED.