Greatest Teachers: Who Would You Choose?

If you could gather six of the planet's best teachers in one place for three days, who would you choose?

Would you pick:

Rafe Esquith, who teaches Los Angeles inner-city fifth-graders to perform Shakespeare?
Hans Jensen, the world's best cello teacher?
Michael Sandel, whose Harvard class is so life-changing it was just turned into a public-television special?
How about Idan Ravin, basketball's Hoops Whisperer, who ignites NBA players to new levels of performance?

It's not a hypothetical...