Yes I know I have been to all 3 of them before. The NY show only has a small portion of it dedicated specifically to pizza… however there are a lot of other useful vendors there also, for example there are many equipment dealers and marketing companies that will attend. There is also a number of seminars to attend that pretain to all kinds of businesses.
Not to mention you can visit the oldest pizzeria in America http://www.firstpizza.com/newyork.html along with many others that have a great tradition and withstood the test of time
You have not had a true New York Pizza unless you have visited one of these places.
I should clarify I am not saying any one show is better than another… just for me this year NYC is a better trip cost and distance wise than the others. Although if I had to pick from one of the many events I would have to go with the pizza cruise… Good times with good people!