Melody Gardot - Which albums to buy?

Hello music lovers,

I just came upon Melody Gardot by chance and after listening to the Amazon sounds clips for "My One and Only Thrill".  Really liked what I was hearing.  I recently got into Karen Souza based on a recommendation from an A'Goner as well as Kandace Springs.  Melody's songs seem to have a genuineness to them.  

So...based on song and sound quality, which album (s) should I pursue?  Thanks!