I was coming on the hipforums to start a thread on how much I love Ella Fitzgerald, but I see you've beat me to it.
Me too! I'm listening to her now. I used to think that Aretha Franklin had a more powerful voice, before I heard Ella let loose on a 1964 performance of "You'd Be So Nice to Come Home To". She has power, and she's infinitely more accurate than Aretha.