Who are your three favorite female singers?

I have favorites, but would like to hear from others.  Thanks
Mollie O’Brien
Claire Lynch
Allison Krauss

can’t stop there...
Lydia Pence
Eva Cassidy
Sylvia McNair
Hollie Cole

Purest  voice -Eva Cassidy
Most vocally creative - Patricia Barber
Most vocally original (with a great backstory) - Melody Gardot
Honorable mention - Alison Krauss
Best new talent - Candace Springs (she's the real deal)
The OP asked for only three so I will respect his or her wishes...

Chrissie Hynde
Sandy Denny
Joni Mitchell