All these guys mentioned can really (or did) shine.

I really like Leon Kuypers ... remeber that 1-hour Hammond demo on video he did a few years ago? The songs, his style, and the personality that Leon showed in that demo was very impressive to me. I wish he had more stuff available to listen to.

In the video, Leon moves to the B3 around 16:40 minutes in.
Leon Kuypers 1-hour Hammond Demo

I like Barbara Dennerlein too. I would need hip replacements trying to play those pedals the way she does.

Barbara Dennerlein (shows some good footwork)

Barbara Dennerlein (everythings shakin here)