best vocal harmonies in rock

Queen

If you own more than their Greatest Hits, then this is pretty damn obvious!

Gawdbless,

With "Bohemian Rhapsody", you're talking about a song with so many tracks on it that the original tape master literally became transparent due to all of the layers the band kept adding.

No one in the world could duplicate that.

If you're suggesting that Queen didn't deliver the goods onstage, have a look-see at this - I'd say they hit the harmonies pretty impressively - not to mention the rest of the musicianship going on.

http://www.youtube.com/watch?v=4DvlYv5RrVQ

Since most of the responses seem to be so focused on acoustic music, I'll throw out something more recent:

Nickel Creek

At least in this decade, they were unsurpassed when it came to vocal harmonies...