seriously, pick any song what so ever, you cannot go wrong with these guys.
Depending on what your musical preferences are I would suggest:
Orchid and Morningrise albums if you are into old school blackish death metal styles, "forest" or "green" metal, that kinda mystical evil feel to it
My Arms Your Hearse if you like heavy, chaotic, and sad feel. Also a, its a concept cd with excellent lyrical content.
Still Life if you like a "classical accoustic guitar sound" (that's what stands out most about this album to me) and just overall really good song writing, also a concept album, with good lyrical content
Blackwater Park if you dare go for a hugely heavy mid-tempo sound with some pop-y clean singing elements. Probably best song writing so far, very clear production
Deliverance if you like elements of brutal death metal, also prog-rock like clean singing. This Cd along with the next one are a lot more straight forward and less textured than all their previous releases.
Damnation if you like fairly simple and straight forward 70's prog rock, with interesting lead singing lines. Very moody, soft, and sad, with much less contrasts than their previous stuff.
anyways.. thats my $0.02.
sfarog