Jazz Fest is a great experience, even though it should probably be called the New Orleans Multi-Genre Music and Heritage Festival, or something like that. You can make the kind of festival out of of it that you wish; for me it is a jazz/blues/world music festival. Each year I learn more about the New Orleans jazz scene, which is vibrant and full of talent.
Just focusing on trumpeters I heard this year, these included: Maurice Brown, Terence Blanchard, Russell Gunn, Sean Jones, Leroy Jones, Jamil Sharif, Christian Scott, Nicholas Payton, Ashlin Parker, Shaye Cohn, Marlon Jordan, Gregory Davis... And I'm leaving out 15 or so members of the Trumpet Mafia.
I've already booked my hotel for next year.