If you're new to death metal, get Possessed- 7 Churches first. If you like that, than Entombed's Left Hand Path is a great follow up.
If you listen to Coroner's No More Color, your vagina will be ripped apart by monkeys.
With Deicide, start with the self-titled first.
Consvming Impvlse is awesome, but it's all that's worth getting by Pestilence really.
Persecution Mania is a great starting point for Sodom.
Not so sure about Immolation cos I've only heard one album, and Dawn of Possession isn't it. and I'm not sure if the album I have is a better starting point.
As for stand out songs...
Pestilence - Consuming Impulse: Out of the Body
Deicide - Deicide: Sacrificial Suicide
Deicide - Legion: Holy Deception
Demilich - Nespithe: the first track, because after that it all kind of runs together
Entombed - Left Hand Path: Left Hand Path
Possessed - Seven Churches: Holy Hell
Sodom - Persecution Mania: Nuclear Winter
Coroner - No More Color: DOA
He's like "yo give me yo insurance information!" and I'm like "I didn't hit you with no car, I hit you with this mack truck I call a fist!"