What kind of vanilla extract do YOU use?!

Peter was just watching Good Eats, and Alton Brown was talking about vanilla beans. While the vanilla bean from Mexico is superior, he says that you should never buy vanilla extract from Mexico. He says the extract usually is processed with parts of the tonka bean which is a filler that tastes like vanilla but contains some quite harmful substances.

Ina Garten always wants us to use "good vanilla," so, what kind of good vanilla do you use?

Images are from the public domain/or published with permission via Wikipedia Commons.