Florence Welch has been elected as the biggest rock female vocalist

The singer Florence Welch of Florence + The Machine band has been voted the greatest female artist of the rock. Who decided this was the British radio listeners of XFM.
The Radio that Liam Gallagher recently elected as the best singer of all time, now did a poll for "best rocker"
it has displaced weight singers like Amy Winehouse
 
Here are the top 10:
1. Florence Welch

Florence Welch

2. Alison Mosshart
3. Skin (Deborah Dyer)
4. Karen O
5. Debbie Harry
6. Siouxsie Sioux
7. PJ Harvey
8. Hayley Williams
9. Amy Winehouse
10. Courtney Love

I am asking myself now  WHERE IS JANIS JOPLIN?
For me, she always will be the first place <3 haha
Now in your opinion who is the best?