BEST FEMALE VOCAL EVER

@tubegroover "For me, my favorite, range, tone, improv ability which is bottomless and sheer listenability, Sarah Vaughn"

+1.  Couldn't agree more

**If** the question is not intended to encompass opera and classical singers, and **if** the question is not intended to take repertoire into account (those things are not made clear in the OP), my vote goes to Connie Francis.

Regards,
-- Al

Jperry Jane Fielding kind of reminds me of Margaret Whiting who was it seems a bit more famous than some of the now forgotten girls from the 50's in your link, thanks for that!. Check out "Time After Time" by Margaret very 50's style in delivery typical of white female singers from that era. All these are definitely worth checking out in contrast with today's song stylists and arrangements.

Cass Elliott, Diane schurr, Carly Simon, in no particular order

Whitney Houston