Best Female Rock Vocalist

Haven't seen either live but have seen them both on TV within the last few years and they can still belt it. Saw Pat Benatar not that long ago also on something and she still had it as did Linda Ronstadt (she has to be pushing 80). I pick Stevie because like that unique "quality" she has in her voice, but I'm not gonna argue too hard against most of these names. More of a preference as most things are.
I remember hearing Pat for the Rock n Roll Hall of Fame (that they finally put her in!) and remember being just slightly disappointed that she didn't seem to be able to hit the higher notes she used to be able to (which was an incredible range). But I think I'm being hypercritical.

I think I remember the last time seeing a video of Stevie from recent and still sounding pretty much the same but I haven't heard Ann sing recently. I was just curious what everyone else thought.

Now, Linda has Parkinson's and can't sing at all now. Which is heartbreaking because I adore her.