I think your favorite Singer is Ann Wilson or is it Anne Wilson?
You're right, Ann Wilson is her name. 
Great! She is amazing. Many look to her as one of the most talented female singers in rock music!
I agree! She is 70 years old now but still looks like she is in her forties, and she seems to be an amazing person as well. 
As much as she is a vocalist, she plays the flute and sometimes, the guitar.
True, I have seen her play those instruments in a video. She is very good at those as well. 
She wrote a lot of the band's songs, along with her sister Nancy. 
Yes she did, she was also married to her guitar player early on in the beginning of the bands success
Her band Heart first started as White Heart. The band changed the name to Hocus Pocus for a while before settling for Heart in 1974.
I think Heart was the better choice out of those.