This one has to go to Tori Amos, who I saw at the Tampa theater. Tori is something else in concert, especially at a small venue (what she plays the majority of the time).
It's like meeting a stranger on a plane and being told an interesting story. When you leave you know you made a connection, but that you're not sure you will ever see the person again.
I think the #1 recommendation for any live act is "would you go see them again". In Tori's case the answer is definitely yes (though I'm not one of those people who follows anyone around on tour and watches them night after night).