Top 3 heavy metal songs

“You Light Up My Life” - D. Boone
“Better” - Helmet
“Electric Youth” - D. Gibson

Tough to just pick three. Since the classics are pretty much already covered, I’ll stick to recent favorites, and just to be a true metal snob, they’ll all be Scandinavian:

Norway: Pagan’s Mind “New World Order”
Sweden: Amon Amarth “Pursuit of Vikings”
Finland: Finntroll “Det Iskalla Trollblodet”
D

Not quite traditional metal, but in the same general space:

Motorhead - “Lost Johnny”, from the On Parole album. This album has much more a hard-rock/punk flavor than the speed metal sound they developed later.

Chrome - “Armageddon”. This is actually early industrial, of course.

Hawkwind - “Brainstorm”. The boys in Hawkwind had a foolproof formula:

1 - Get one of the best riffs in the history of riffdom.
2 - Play it four times.
3 - Change it slightly.
4 - Play that four times.
5 - Change it slightly.
6 - Play that four times.
7 - Make it explode.

Couple that with an insane poet writing a lot of your lyrics, and add extra points for having a musician who literally used a double-bitted wood axe as an instrument.

My suggestions:
Number of the beast - Iron Maiden

The Prisoner - Iron Maiden

Turn up the night - Black Sabbath

Deep Purple – Smoke on the Water

Black Sabbath – Iron Man

Led Zeppelin – Stairway to Heaven

I don’t know about best, but I’d say these three songs are certainly the most iconic.

I dithered a bit about putting Blue Oyster Cult’s *Don’t Fear the Reaper * on the list instead of Stairway to Heaven, but finally decided against it

You young punks just don’t know nothin’ 'bout music. Listen to yer grandpa …