Song with the best vocals from your favo(u)rite artist?

She sure can. Listen to the first half of her 2006 album, Begin to Hope. It's some of her best stuff. She also has a relatively recent album, What We Saw From the Cheap Seats, with lots of great songs. Like this one:

And to contribute to the thread, I'll go with Black by Pearl Jam.

I fell in love with Cara Dillon late last year. I've always loved me some folk music and her voice is just amazing.

On the other hand Taylor Rice from Local Natives is also pretty amazing!